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Boron Nitride Ceramic Insulator For High Temperature Furnace

High temperature furnace designs contain heating elements made of carbon, tungsten or molybdenum. When the operating temperature of the high temperature furnace is significantly higher than 1500°C, the elements are electrical insulated from the furnace sides using aluminum oxide ceramics.

With the development of technology, more and more companies need high temperature electrical furnaces with shorter production cycles and faster heating and cooling speeds. These oxide ceramic insulation parts are easily subject to failure of components due to high pressure, which increases the downtime of the furnace.

Compared with traditional aluminum oxide materials, the working life of ceramic components made of hexagonal boron nitride (BN) is much longer. For thermal processes at extremely high temperatures and vacuum or inert conditions, boron nitride ceramics are often the only feasible solution. Boron nitride ceramic material max using temperature in inactive gas atmosphere is 2100°C.

In the field of high temperature furnaces, they includes: vacuum furnaces, hot pressing sintering furnaces, hot isostatic furnaces, Innovacera can provide a series of boron nitride precision machined components such as boron nitride sleeves, BN bushings, BN tubes, BN washers, BN insulators, BN insulation plates, BN flanges and other boron nitride ceramic insulator parts subjected to high thermal shock to meet customers’ specific requirements in the high temperature furnaces industry.

Boron Nitride Material Advantages

– 1. High temperature resistance: can maintain stable performance under high temperature environment.

– 2. No bonding: no bonding phenomenon, easy to use and handle.

– 3. Corrosion resistance: able to resist the erosion of various corrosive media.

– 4. Heat dissipation: has good heat dissipation performance.

– 5. Thermal conductivity: can effectively conduct heat.

– 6. Thermal shock resistance, high electrical breakdown strength (3-4 times that of alumina), carbon atmosphere corrosion resistance is much stronger than alumina.

– 7. It does not wet with aluminum water and can protect the surface of materials in direct contact with aluminum liquid, magnesium, zinc alloy, and slag.

Boron Nitride Material Properties

Properties	Unit	UHB	HB	BC	BMS	BMA	BSC	BMZ	BAN	BSN
Main Composition	–	BN>99.7%	BN>99%	BN>97.5%	BN+Al +Si	BN+Zr+Al	BN+SiC	BN+ZrO2	BN+ALN	BN+Si3N4
Color	–	White	White	White	White Graphite	White Graphite	Greyish- Green	White Graphite	Greyish- Green	Gray Black
Density	g/cm3	1.6	2	2.0 ~2.1	2.2 ~2.3	2.25 ~2.35	2.4 ~2.5	2.8 ~2.9	2.8 ~2.9	2.2 ~2.3
Three-Point Bending Strength	MPa	18	35	35	65	65	80	90	90	/
Compressive Strength	MPa	45	85	70	145	145	175	220	220	400 ~500
Thermal Conductivity	W/ (m·k)	35	40	32	35	35	45	30	85	20 ~22
Thermal Expansion Coefficient (20 ~ 1000°C)	10-6/K	1.5	1.8	1.6	2	2	2.8	3.5	2.8	/
Max Using Temperature In Atmosphere In Inactive Gas In High Vacuum (Long Time)	°C	900 2100 1800	900 2100 1800	900 2100 1900	900 1750 1750	900 1750 1750	900 1800 1800	900 1800 1800	900 1750 1750	900 1750 1700
Room Temperature Electric Resistivity	Ω·cm	>1014	>1014	>1013	>1013	>1013	>1012	>1012	>1013	/
Typical Application	–	Nitrides Sintering	High Temperature Furnace	High Temperature Furnace	Powder Metallurgy	Powder Metallurgy	Powder Metallurgy	Metal Casting	Powder Metallurgy	Metal Casting
High Temperature Electrical Furnace Components	–	–	✓	✓	✓	✓	✓	✓	✓	✓
Metal Vaporize Crucible			✓	✓					✓	✓
The Container of Metal or Glass Melting	–	✓	✓	✓	✓	✓	✓	✓	✓	✓
The Casting Mould Components of The Precious Metal and Special Alloy.	–	–	–	✓	–	✓	–	–	✓	✓
High Temperature Support Part	–	–	–	–	–	✓	–	✓	✓	✓
Nozzle and Transport Tube of The Melting Metal	–	–	✓	✓	✓	✓	✓	✓	✓	✓
Nitrides Sintering (Sagger and Setter Plate)	–	✓	–	–	–	–	–	–	–	–

Remark: The valueisjustfor review, differentusing conditions wilhave alittle difference.

Advanced Machining Processes

INNOVACERA offers professional customized production of boron nitride with qualified quality. It ensures fast delivery within 15 to 30 days and can process a wide range. The largest BN block of high-purity boron nitride: 500*500mm.

Innovacera Boron Nitride Material Types:

– Pyrolytic Boron Nitride: 99.99% Boron Nitride*

– UHB: >99.7% Boron Nitride

– HB: >99% Boron Nitride

– BC: >97.5% Boron Nitride

– BAN: Boron Nitride + Aluminum Nitride

– BMZ: Boron Nitride + Zirconium Oxide

– BMA: Boron Nitride + Zirconium Oxide + Aluminum Oxide

– BSC: Boron Nitride + Silicon Carbide

– BMS: Boron Nitride +Silicon Oxide+Aluminum Oxide

– BSN: Boron Nitride + Silicon Nitride

Consult with Innovacera Engineers

If you need any boron nitride components for high temperatures industry application or any technology questions, welcome to contact us at sales@innovacera.com or 86 592 558 9730, we will do our best to meet your requirement.

Zirconia Ceramic Axles For Ultra Mini Motor Driver

Zirconia ceramic axles have good sliding features and it was made by zirconia ceramics, zirconia ceramic material is good choice for miniaturization dynamic systems. The zirconia ceramic axles manufacturing process request strict quality control and advanced ceramic technology . Zirconium oxide shaft elastic modulus and heat expansion coefficient are similar to steel and it is biocompatible. each shaft is carefully produce to ensure precise dimensions and smooth surfaces.

Zirconium oxide ZrO2 is a high mechanical load capacity technical ceramic material , have high load capacity and long service life performance when working in the ultra mini motor driver. The zirconia ceramic axles was installed in the planetary gears in ultra mini motor driver, due to this excellent’s zirconia ceramic performance, the ceramic axles help to extend the service life of ultra mini motor driver and more reliable.

Zirconia ceramic axles feature:

· Coefficient of thermal expansion similar to steel
· High mechanical load capacity
· High strength&hardness
· High fracture toughness
· Wear resistance
· Excellent thermal insulation
· Excellent sliding
· Low thermal conductivity
· Corrosion resistance in acids and alkalis

Zirconia axles properties:

Properties	Unit	Value
Composition	%	94.5% ZrO2 5.5% Y2O3
Specific Density	g/cm3	≥6.03
Hardness (HV)	GPa	>12
Coefficient (20-400°C)	10-6 /k	9.6
Elastic Modules	GPa	205
Fracture Toughness	MPa·m1/2	8-10
Crushing Load	KN	≥25 (S ⊄6.5mm)
Grain Size	μm	<0.5
Thermal Conductivity	w/(m·k)	3

Ceramic axles application:

The ceramic axles already widely use for application such as compact drives , gear, motor, sensor, controller, accessories .The use of zirconia ceramic axles in ultra mini motor driver planetary gears led to the birth of a series of individual cylinder ceramic rods and pins, such as ceramic linear guide, ceramic locating lever, ceramic splice, ceramic roller, ceramic bearings, ceramic housings for power tools.

Ceramic components are more wear-resistant than steel and make, e.g., ceramic gearheads are more precise and reliable. It is impressive that the benefits of ceramics as a material for sockets/connectors, guides, axles, and shafts.

zirconia ceramic axles also can be used for other fileds where request of extreme conditions for customized projects, such as request of saltwater-resistant, high mechanical strength, corrosion resistant, wear resistant, and also offer high efficiency, then you can use the zirconia ceramic spindles for underwater drives.

Other industry such as medical equipment, precision instruments, automotive, electronic and electrical, semiconductor, photoelectric, life scientific and aerospace industry also need zirconia ceramic axles for some special request.

Innovacera standard ceramic axes size:

Innovacera produce series of zirconia ceramic axles for ultra mini motor driver, here are some standard size for your reference:

Diameter: 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 5.5mm, 6.0mm, 8.0mm.
Length: 2.4mm, 6.4mm, 7.4mm, 10.6mm, 13.8mm, 15mm, 35mm, 40mm, 60mm, 70mm, 120mm,

ΦD	L=2.4	L=6.4	L=7.4	L=10.6	L=13.8	L=35	L=40	L=60	L=70	L=120
0.8	0824	0864	0874	08106	08138	0835	0840	0860	0870
1.0	1024	1064	1074	10106	10138	1035	1040	1060	1070
1.5	1524	1564	1574	15106	15138	1535	1540	1560	1570
2.0	2024	2064	2074	20106	20138	2035	2040	2060	2070
2.5	2524	2564	2574	25106	25138	2535	2540	2560	2570
3.0	3024	3064	3074	30106	30138	3035	3040	3060	3070
4.0	4024	4064	4074	40106	40138	4035	4040	4060	4070	40120
5.0	5024	5064	5074	50106	50138	5035	5040	5060	5070	50120
5.5	5524	5564	5574	55106	55138	5535	5540	5560	5570	55120
6.0	6024	6064	6074	60106	60138	6035	6040	6060	6070	60120
8.0	8024	8064	8074	80106	80138	8035	8040	8060	8070	80120

Consult with Innovacera

If you need any zirconia ceramic components for high mechanical load capacity and and long service life application or any technology questions, welcome to contact us at sales@innovacera.com or 86 592 558 9730, we will do our best to meet your requirement.

Porous Ceramic as filter

Innovacera have two materials as Porous ceramics one is Aluminum Oxide and the other one is Silicon Carbide. For Aluminum oxide, the common pore size we make is 1um, 15um, 30um, 40um, 50um and 100um. Silicon carbide general pore size is 15um, 30um and 50um, both material porosity is 40%-50% . For other hole size and porosity, it can be customized as well with large quantity.

Between two, Aluminum oxide is more common used than silicon carbide as it is cost effective. But if you need to use under the max working temperature 800 degree-100degree, silicon carbide is only the one that available because Aluminum oxide with max 800 degree.

Here is the material data sheet for both:
Alumina Porous ceramic properties:

Material composition:	Al2O3>=80%, SiO2 16%-18%
Density:	2.3g/cm2-2.5g/m3
Hardness:	>=50HRA
Flexural Strength:	>= 40MPa
Compressive Strength:	>=600
Porosity:	40%
Pore Size:	1-2um, 5um, 15um, 30um, 40um, 50um, 100um and customized
Max Working temperature:	800 degree
Operating Pressure:	<=10MPa
Acid Resistance:	<=10mg/cm2
Alkali Resistance:	<=20mg/cm2

Silicon Carbide Porous ceramic properties:

Material Composition:	SiC>=88%, SiO2 12%
Density:	2g/cm2-2.2g/m3
Hardness:	>=40HRA
Flexural Strength:	>= 30MPa
Compressive Strength:	>=500
Porosity:	45%
Pore Size:	15um, 30um, , 50um and customized
Max working temperature:	1000 degree
Operating Pressure:	<=10MPa
Acid Resistance:	<=15mg/cm2
Alkali Resistance:	<=25mg/cm2

With properties like excellent chemical resistance, good wearing and erosion resistance in acid and alkali conditions, withstanding high temperature and uniform pore structure, porous ceramics are excellent material as filters in various industries. Here are part of common use:

1.Water Filtration: Porous ceramics can filter sediments, bacteria and other pollutants in water.

2. Air Filtration: Porous ceramics can remove contaminants and particulate matter from the air.

3. Oil and Chemical Filtration: Porous ceramics can separate impurities from oils and solvents, improving the quality of products.

4. Catalytic Filters: Porous ceramic can filter unwanted byproducts to facilitate chemical processes in automotive and industrial applications.

Besides the applications list above, it can also use in capillary electrophoresis, high temperature chemical support for gas absorption, high efficiency flow through catalytic supports, gas burners and chromatography.

Porous ceramics are effective as filters due to several key properties:

1.Pore Structure: in porous ceramic, it has the interconnected pores which can create a network allowing fluids to pass through while trapping particles and contaminants.

2.Chemical Stability: with good wearing and erosion resistance in acid and alkali conditions, it is suitable for filtering various fluids.

3.High Temperature Resistance: porous ceramics can withstand high temperatures max 1000 degrees.

Those properties make porous ceramics an ideal material applied as filters. Any more question about porous ceramic, just feel free to contact us at +86 592 558 9730 or sales@innovacera.com for more information.

Zirconia Ceramic Pin Rods For Cameras

Cameras rod components is very small and it was made by zirconia ceramic, the zirconia ceramic pin rods manufacturing process request strict quality control and advanced ceramic technology . Each rod is carefully produce to ensure precise dimensions and smooth surfaces. This attention to detail is essential for seamless integration into the camera’s design and for optimal performance.

Zirconia ceramics pin rods are often used in camera applications due to their excellent properties, they can serve various functions, including acting as guiding rods, support structures, or wear-resistant components in mechanisms like lens adjustments or focusing systems.

Zirconia ceramic pin rods feature:

· Coefficient of thermal expansion similar to iron
· High strength&hardness
· High fracture toughness
· Wear resistance
· Excellent thermal insulation
· Very high resistance to crack propagation, high fracture toughness
· Low thermal conductivity
· Corrosion resistance in acids and alkalis
· Modulus of elasticity similar to steel

Zirconia ceramic pin rods material properties:

Properties	Unit	Value
Composition	%	94.5% ZrO2 5.5% Y2O3
Specific Density	g/cm3	≥6.03
Hardness (HV)	GPa	>12
Coefficient (20-400°C)	10-6 /k	9.6
Elastic Modulis	GPa	205
Fracture Toughness	MPa·m1/2	8-10
Crushing Load	KN	≥25 (S ⊄6.5mm)
Grain Size	μm	<0.5
Thermal Conductivity	w/(m·k)	3

The Application of zirconia ceramic pin rods:

Zirconia rods for camera exceptional hardness provides a stable and reliable support structure within the camera, the zirconia ceramic wear resistance protects camera lens to avoid the scratches and corrosion.

With its good mechanical properties and stability, it provides support and protection for the internal structure of the camera.

Zirconia rods as part of the camera motor ensure the reliability and performance of the camera, which makes the camera can be used in a variety of environments.According to the design, function and application scenarios of the camera, different materials can be selected as the material of its motor accessories, such as zirconia can be selected as the material of the camera motor support rod for specific applications.

zirconia ceramic pin also can be used for other fileds: medical equipment, fluid control, communication devices, precision instruments, textile machine and aerospace industry. For example, zirconia ceramic can be used to manufacture the stem (tube) of the electrosurgical prostatectomy, Optical fiber tube, zirconia nozzles and mobile phone plate.

Consult with Innovacera

If you need any zirconia ceramic components for Photoelectric technology industry or any technology questions, welcome to contact us at sales@innovacera.com or 86 592 558 9730, we will try our best to meet your requirement.

LaB6 Elements Hollow Cathode Emitter for Thermionic Emission

Lanthanum hexaboride (LaB6) is an inorganic compound with remarkable properties. It is a refractory ceramic material, characterized by a dark purple appearance, a high melting point of 2210°C, and excellent stability in both vacuum and harsh chemical environments—it is insoluble in water and hydrochloric acid. Known for its low work function, LaB6 exhibits one of the highest electron emissivities, making it a highly efficient electron source.

LaB6 cathodes are high-performance, resistively heated thermionic electron emitters. Over the years, LaB6 hollow cathodes have demonstrated exceptional durability and reliability in electric propulsion systems. Hollow cathodes, which utilize materials with low work functions to efficiently emit electrons, are complex devices. LaB6 hollow cathodes with polycrystalline inserts are particularly well-suited for such applications due to their favorable properties.

Lanthanum Hexaboride Cathodes Advantages:

Extended lifespan
Exceptional stability
Low work function (high electron emissivity)
Strong resistance to thermal shock
Excellent electrical conductivity
Superior chemical and oxidation resistance

Lanthanum Hexaboride Applications:

Thermionic emission (cathodes)
Plasma sources for plasma-enhanced chemical vapor deposition (PECVD)
Vacuum electron beam welding systems
Electron beam surface modification devices
Electron beam lithography systems
Transmission electron microscopes (TEM)
Scanning electron microscopes (SEM)
Surface analysis systems
Radiotherapy devices
Properties of Lanthanum Hexaboride:

Lanthanum Hexaboride Properties:

Properties	Unit	Lanthanum Hexaboride
Purity	%	>99.5
Density	g/cm3	>4.30
Structure	/	polycrystalline
Vickers hardness	HV	1065
Shore hardness	HS	HS
Thermal conductivity	W/mK	15
Electrical Conductivity	S/m	1.83*10^6
Flexural strength	MPa	165

Lanthanum Boride Produce Process

Hot pressing sintering is a common method used to produce Lanthanum Boride (LaB6), especially due to its high melting point and excellent thermionic emission properties, Hot Press Sintering process for producing Lanthanum Boride is as below:

Raw Material Preparation-Powder Blending-Compaction-Hot Press Sintering Process
-Cooling and Finalization- Quality Control and Testing

Packaging of Lanthanum Boride

Given its fragile nature, LaB6 is typically vacuum-sealed in plastic bags, cushioned with thick foam, and packed in cartons to prevent damage during transportation. Special packaging arrangements can be made upon request.

Consult with Innovacera Engineers

Innovacera provide our customers with premium-quality Lanthanum Hexaboride ceramic components, supported by a team of experienced engineers who can assist with material selection and product design. For more information, please contact us at +86 592 558 9730 or email us at sales@innovacera.com.

Aluminum Nitride Substrate

Aluminum nitride (AlN) is a advanced technical ceramic material that features an extremely interesting combination of very high thermal conductivity(up to230 W/m.K) and excellent electrical insulation properties.

This makes aluminum nitride (AlN) ceramic substrate widely use in power electronics and microelectronics. For example, it is used as a circuit carrier (substrate) in semiconductors or as a heat-sink in LED lighting technology or high-power electronics.

Aluminum Nitride(AlN) Ceramic Substrate Advantages

·High thermal conductivity (170-230W/mK), up to 9.5 times than that of Aluminum Oxide ceramic substrate.

·Similar coefficient of thermal expansion to that of silicon (Si), GaN, and GaAs semiconductors. This helps to achieve high reliability of silicon (Si) chip and thermal heat-up cycling.

·High electrical insulation, and smaller dielectric constant.

·High mechanical strength (450MPa).

·Superior corrosion resistance against molten metal.

·Very high purity, no toxicity.

Material Properties of AlN Ceramics:

Properties	Unit	AN170	AN200	AN230	AN99	AN999
Color	–	Gray	Gray	Beige	Gray	Beige
Content of AlN	–	≥95%	≥95%	≥96%	≥99%	≥99.9%
Bulk Density	g/cm3	≥3.30	≥3.30	≥3.28	≥3.26	≥3.25
Flexural Strength	MPa	≥400	≥300	≥300	≥300	≥300
Compressive Strength	MPa	2500	2000	2000	2000	2000
Hv 500g	Gpa	10.5	9.5	9	9	9
Young’s Modulus	Gpa	300	300	300	280	280
Thermal Conductivity (@20°C)	W/m·K	≥170	≥200	≥220	~100	~90
Specific Heat	KJ/(Kg·K)	0.74	0.74	0.73	0.73	0.73
C.T.E (r.t.-400°C)	10-6/K	4.6	4.6	4.6	4.6	4.6
Volume Resistivity	Ω·cm 20°C	≥1014	≥1014	≥1013	≥1010	≥1010
Dielectric Strength	KV/mm	≥16	≥16	≥15	≥15	≥15
Dielectric Constant (@1MHz)	–	8.6	8.6	8.6	8.6	8.6
Loss Tangent (@1MHz)	×10-4	5	5	5	5	5

·Aluminum Nitride(AlN) Ceramic Substrates Applications

·Microelectronics: Ideal for use in integrated circuits and electronic devices.

·LED Packaging: Ensures effective heat management in LED applications.

·Power Electronics: Used in power modules and high-frequency circuits.

·Semiconductor Manufacturing: Provides a stable platform for semiconductor devices.

·Microwave and RF Components: Suitable for applications requiring high-frequency performance.

·Aluminum Nitride (AlN) Ceramic Substrates available for various metallization process, like Thin film, Thick film, Direct Bonded Copper, Active Metal Brazing and Direct Plated Copper.

In-House Advanced Machining Processes

Innovacera provides all the advanced services you need to shorten lead times and improve component quality.
Surface Finishes:
AF = As Fired
LBS = Lapped Both Sides (25u” Ra)
PBS = Polished Both Sides (2u” Ra)
P1S = Polished 1 Side (2u” Ra) / 2nd Side Lapped
Improved tolerances, surface finishes and alternate sizes are also available.

Standard & custom substrate available

Standard squares: 25.4mm, 50.8mm, 101.6mm and 114.3mm (1ʺ, 2ʺ, 4ʺ, 4.5ʺ)
Standard rounds: Φ101.6mm,Φ152.4mm, Φ203.2mm,Φ304.8mm and Φ356mm (4ʺ, 6ʺ,8ʺ,12ʺ,14ʺ)
Thickness available: 0.2~25.4mm (0.008ʺ to 0.140ʺ)
Custom shapes and sizes available for quoting!

Consult with Innovacera Engineers
Innovacera has a highly qualified staff to assist with material selection and product design. Please contact us today at +86 592 558 9730 or sales@innovacera.com for more information.

Hot Pressing (HP) Sintering Process for Ceramic Materials Applications

Hot pressing(HP) sintering process is the most commonly used technique for fabricating dense, non-oxide monolithic ceramics and their composites.

During hot pressing sintering, temperature and pressure are simultaneously applied to the powder compact contained in a die. Under the application of pressure, the contact points between particles develop a very high stress, increasing the local diffusion rates.

As for all forms of densification, the particle size, temperature, pressure, heating rate and holding time all influence the density and micro-structure of the hot pressed compacts whilst a controlled atmosphere is required for the Non-oxides. Carbides, borides and silicides are often hot pressed under vacuum or an inert gas such as argon whilst the nitrides are generally densified under a nitrogen atmosphere.

What are the benefits of hot pressing sintering?
Hot pressing sintering is a manufacturing process that uses heat and pressure to create strong, durable parts. The process has several benefits, including:

· High strength and durability
Hot pressed parts are typically much stronger and more durable than parts sintered using traditional methods. This is because the high temperature and pressure of the hot pressing process cause the particles in the powder to sinter more completely, resulting in a denser material with fewer defects.

· Precise dimensional control
Hot pressing sintering can create parts with exact dimensional tolerances. This is because the pressure of the hot pressing process helps to force the particles in the powder to close together, resulting in a more uniform and consistent shape.

· Reduced manufacturing costs
Hot pressing sintering can be a more cost-effective manufacturing process than traditional methods, such as machining or casting. This is because hot pressing sintering can create parts with complex shapes and features that would be difficult or expensive to machine or cast.

· Improved surface finish
Hot pressing sintering can produce parts with a much improved surface finish than traditional sintering methods. This is because the high temperature and pressure of the hot pressing process help to close up any pores or voids in the material, resulting in a smoother and more uniform surface.

· Reduced sintering time
Hot pressing sintering can reduce the sintering time required for some materials. This is because the hot pressing process’s high temperature and pressure help accelerate the sintering process, resulting in shorter manufacturing cycles.

· Improved mechanical properties
Hot pressing sintering can improve the mechanical properties of some materials. This is because the hot pressing process’s high temperature and pressure help strengthen the material, resulting in parts with improved tensile strength, compressive strength, and fatigue resistance.

Which type ceramic material is available for Hot pressing(HP) sintering process?

· Borides Ceramics: CeB6, Cr2B, LaB6, TaB2,TiB2, ZrB2;

· Carbides Ceramics: B4C, HfC, SiC, TiC, TiCN, VC, WC, ZrC;

· Nitrides Ceramics: AlN, BN, HfN, Si3N4, TiN, ZrN;

· Oxide Ceramics: Al2O3, CeO2, HfO2, MgO, SiO, TiO2, Y2O3, ZrO2, ZnO;

What’s the application of advanced ceramics materials made by hot pressing sintering process?

The high purity ceramic materials(Oxide, Nitride, Boride, and Carbide Ceramics) produce by hot pressing sintering is widely used in thin film technology(as a sputtering target) and semiconductor process.

Our hot pressing sintering process also serves to produce composite parts with more complex shape. Please contact us if your required high purity advanced ceramic material(2N~5N) and hot pressing sintering service(maximum size is Φ580*H500mm).

TO 247 Alumina Ceramic Thermal Pads For Power Switches

Alumina Ceramic Thermal Pads are designed to provide a preferential heat-transfer path between heat-generating components, power switches, heat sinks, and other cooling devices. Alumina ceramic (Al₂O₃) thermal pads are renowned for their exceptional thermal conductivity and electrical insulation properties. Alumina ceramics exhibits thermal conductivity ranging from 20 to 30 W/m·K, allowing for efficient heat dissipation in high-power applications. This critical feature prevents overheating, enhancing the reliability and longevity of electronic components. Additionally, alumina’s high melting point and chemical stability make it suitable for harsh environments, ensuring these thermal pads maintain performance even under extreme conditions.

TO 247 alumina ceramic thermal pads typically used in the power switches, Integrated Circuit Chip, Packaging Heat Conduction, IGBT Transistor Heat Sink MOS Transistor, MOSFET Transistor Heat Sink Interface, LED Board TIM ( Thermal Interface Material ), COF Heat (Chip ON Film), and various electronic devices where effective heat management is crucial. Their excellent electrical insulation properties make them particularly well-suited for applications requiring high insulation resistance and low thermal resistance, such as power supply modules, inverters, and electric vehicle (EV) drive systems. As the demand for efficient thermal management solutions grows, TO 247 alumina ceramic thermal pads are increasingly integrated into designs for high-performance power electronics.

The market for TO 247 alumina ceramic thermal pads is growing with the power electronics market expands. The need for advanced thermal management solutions becomes more pronounced. With the increasing complexity and power requirements of electronic devices pushing the demand for materials that offer both high thermal conductivity and insulation. Alumina ceramic thermal pads are poised to become essential components in next-generation power electronics, ensuring efficient operation and reliability.

Alumina ceramic thermal pads regular model size:
TO-3P/TO-220/TO-247/TO-264/TO-3/TO-254/TO-257/TO-258,
With Hole or Without Hole.

25x20x1mm (other thickness is available, too);
20x14x1mm (other thickness is available, too);
22x17x0.635mm (other thickness is available, too);
28x22x1mm (other thickness is available, too);
39.7×26.67x1mm (Rhombus shape);
34x24x1mm (other thickness is available, too);
40x28x1mm (other thickness is available, too);
50.8×50.8x1mm (other thickness is available, too).

Other Standard Size:
114.3×114.3mm;
152x152mm;
190.5x138mm …

Customized sizes are available.
TO 247 alumina ceramic thermal pads represent a critical advancement in thermal management technologies. As industries continue to innovate, these thermal pads will play a key role in meeting the demands of future technologies.

Advantages of ceramics used in ion implanters

As an advanced semiconductor manufacturing equipment, ion implanters have very high requirements for the performance of materials.

As an important component, ceramic accessories play a vital role in ion implanters.

A.Basic characteristics of ion implanter accessories and ceramic accessories

Ion implanter accessories are mainly made of high-purity silicon nitride, silicon carbide (SiC), alumina, alumina/silicon carbide microporous ceramics, aluminum nitride (AIN), sapphire and other ceramic materials, with the following characteristics:

1. High hardness and high strength: Ceramic fittings have high hardness and strength, which can withstand high load and wear during ion implantation.

2. High thermal stability: Ceramic fittings have a high melting point and can maintain stable performance in high temperature environments.

3. Good chemical stability: Ceramic accessories have good chemical stability and can work stably for a long time in harsh environments.

4. Excellent electrical insulation: Ceramic fittings have excellent electrical insulation, can withstand high voltage, and are suitable for electrical parts in ion implanters.

B. Advantages of ion implanter accessories and ceramic accessories

1. Improve ion implanter performance
The excellent performance of the ceramic accessories of the ion implanter makes the ion implanter work stably in harsh environments, improving the performance and reliability of the equipment.

2. Reduce ion implanter costs
The processing performance of ceramic accessories is good, and it can be processed by traditional metal processing methods, such as turning, milling, grinding, etc. This makes the application of ceramic accessories in ion implanters more extensive, reducing the production cost of ion implanters.

3. Promote innovation in semiconductor manufacturing materials
The successful application of ion implanter accessories and ceramic accessories provides new ideas for the research and development of semiconductor manufacturing materials, and promotes the development of semiconductor manufacturing materials in the direction of high performance and low cost

C.Application cases of ion implanter accessories and ceramic accessories

1. Ion implanter component case
Application examples of ion implanter accessories include the manufacture of key components of ion implanters, such as bearings, vacuum suction cups, electrostatic chucks, nozzles, filaments, cathode modules, etc. Due to their high hardness, high strength and high heat resistance, ceramic accessories are able to improve the performance and reliability of ion implanters.

2. Semiconductor manufacturing equipment case
Ion implanter partsExamples of semiconductor manufacturing equipment for ceramic accessories include the key components for manufacturing semiconductor manufacturing equipment, such as packaging substrates, insulating materials, etc. Due to their excellent electrical insulation and chemical stability, ceramic accessories can ensure long-term stable operation of semiconductor manufacturing equipment in harsh environments.

For more information, please contact at sales@innovacera.com.

The Difference Between Electric Heating Wire And Ceramic Heater

Alumina ceramic heater is a kind of high efficiency heat division uniform heater, excellent thermal conductivity of metal alloy, to ensure that the hot surface temperature uniform, eliminate the hot and cold points of the equipment. Alumina ceramic heater is divided into two kinds, respectively PTC ceramic heating body and MCH ceramic heating body. The materials used in these two products are completely different, but the finished products are similar to ceramics, so they are collectively referred to as “ceramic heating elements”.

Due to the increasingly high operating temperature requirements in modern industry, ceramic heaters can adapt to, especially chemical fiber, engineering plastics, plastic machinery, electronics, medicine, food and various pipeline heating; Ceramic heating element in which a meta tungsten or molybdenum manganese paste is printed on a ceramic casting body and laminated by hot pressing and then co-fired at 1600°C, in a hydrogen atmosphere to co-sinter ceramic and metal. Form effective high temperature, high power density, strip heater, and flexible design for easy installation.

Electric heating wire is the most common heating element, its role is to heat up after the power is turned into heat energy. The application range of electric heating wire is very wide, and a variety of common electric heating equipment will use electric heating wire as a heating element, so the electric heating wire is used in medical, chemical, electronics, electrical appliances, metallurgical machinery, ceramic glass processing and other industries.

Take the fan heater as example, the heating body with electric heating wire is more seen on the market, Its heating body is an electric heating wire, and the heat generated by the electric heating wire is blown out by a fan.

The main differences of them are as below:

1. Different materials
Ceramic heating uses PTC heating body, and electric heating wire heating is the heat generated by the heating wire inside the heating core to conduct heat to the metal tube.

2.Different insulation performance
Ceramic heating is not conductive, surface safety is not charged, good insulation performance; The electric heating wire heating is easy to leak because the metal is conductive.

3.Different properties
The biggest advantage of electric heating wire heating is that the hardness is greater than that of ceramic heating core, and it is not easy to break. The disadvantage is that the metal heating core will be oxidized at high temperature, and the efficiency of heat conduction after oxidation is much worse than that before oxidation.

The biggest feature of the ceramic heating core is that the thermal conductivity is good, and there will be no oxidation at high temperature, no matter how long it takes, the efficiency of its thermal conductivity will not have any reduction, and the disadvantage is that the robustness is relatively less than the metal heating core.

Below chart is for better understanding:

Electric Heating Wire	Ceramic Heater
Fast heating speed	Long life
Accurate temperature control	High safety
Low cost	Uniform temperature
Short life	Lower heating speed
Security risks	Poor temperature control
	Manufacturing cost is high

According to the different demand, choose different heater material, if you need fast and accurate temperature control, use electric heating wire , if you pay more attention to safety and life ,use ceramic heater.

For more information, pls contact with us.