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4 types of semiconductor ceramics & characteristics

Semiconducting ceramics refer to ceramics with semiconducting properties and a conductivity of about 10-6~105/m. The conductivity of semiconducting ceramics changes significantly due to changes in external conditions (temperature, light, electric field, gas and temperature, etc.) , so changes in physical quantities of the external environment can be converted into electrical signals and made into sensitive components for various purposes.

Semiconductor-99.7-Alumina-Ceramic-Wafer-Robotic-Arm

1. Thermosensitive ceramics: also known as thermistor ceramics, refer to ceramics whose electrical conductivity changes significantly with temperature. Among them, heat-sensitive semiconductor ceramic tubes and heat-sensitive ceramics are mainly used in temperature compensation, temperature measurement, temperature control, fire detection, overheat protection and color TV degaussing, etc.
2.Photosensitive ceramics: refer to ceramics with photoconductive or photovoltaic effects. Such as cadmium sulfide, cadmium telluride, gallium arsenide, phosphide smoke, bismuth germanate and other ceramics or single crystals, when the light reaches its surface, the conductance increases, and it is mainly used as a semiconductor for automatic control of optical switches and solar cells. Ceramics

Semiconductor-99.7-Alumina-Ceramic-Wafer-Robotic-Arm

3. Gas-sensitive ceramic zirconia semiconductor ceramics
Gas-sensitive ceramics: Refers to ceramics whose electrical conductivity changes with the type of gas molecules they are in contact with. Ceramics such as zinc oxide, tin oxide, iron oxide, vanadium pentoxide, zirconia, nickel oxide and cobalt oxide. It is mainly used for leak detection, disaster prevention alarm and measurement of different gases.
4. Humidity-sensitive ceramics: refers to ceramics whose electrical conductivity changes significantly with humidity. Ceramics such as ferroferric oxide, titanium oxide, potassium oxide-iron oxide, magnesium chromate-titanium oxide and zinc oxide-lithium oxide-vanadium oxide are particularly sensitive to water and are suitable for measuring humidity. and control.

Uses and Characteristics of Ceramic Substrate

Ceramic substrate refers to copper foil directly bonded to alumina (Al2O3) or aluminum nitride (AlN) ceramic substrate surface (single or double sided) at high temperature on a special process plate. The ultrathin composite substrate has excellent electrical insulation performance, high thermal conductivity, excellent soft brazing and high adhesion strength, and can be etched into a variety of graphics like PCB board, with great current-carrying capacity. Therefore, ceramic substrate has become the basic material of high power electronic circuit structure technology and interconnection technology.

Purpose:
High-power semiconductor module; Semiconductor cooler, electronic heater; Power control circuit, power mixing circuit.
Intelligent power module; High frequency switching power supply, solid state relay.
Automotive electronics, aerospace and military electronics components.
Solar panel module; Telecommunications private exchange, receiving system; Laser and other industrial electronics.

Features:
Strong mechanical stress, stable shape; High strength, high thermal conductivity, high insulation; Strong binding force, anti-corrosion.
Excellent thermal cycle performance, cycle times up to 50,000, high reliability.
And PCB board (or IMS substrate) can be etched out of a variety of graphic structure; No pollution, no pollution.
Ceramic Substrate Use temperature range -55℃ ~ 850℃; Thermal expansion coefficient is close to silicon, simplifying the production process of power module.

Aluminum Nitride Ceramic Substrate

Magnesium Stabilized Zirconia Gas Atomizing Nozzles

Magnesium Stabilized Zirconia Gas Atomizing Nozzles are mainly used in the powder metallurgy industry, ferrous and non-ferrous metal powder smelts, such as copper powders, nickel-based alloy powders, stainless steel powders, iron powders and other super alloy powders, etc.
According to different requirements for the qualities, INNOVACERA can supply the different stabilizers and grains combination.
INNOVACERA atomizing nozzles have higher density, excellent resistance to high temperature erosion, crushing of metal liquids and thermal shock stability.
INNOVACERA can provide various shapes and sizes atomizing nozzles and also individually customized according to customer’s demand.

At the same time, INNOVACERA also provide boron nitride containing composite boron nitride nozzles.

Gas atomization

Ceramic Materials Used In Bearing Manufacturing Industry —Silicon Nitride Materials

Silicon nitride ceramic bearings are mainly used in four aspects:
1.High-speed bearings;
2.High-temperature bearings;
3.Vacuum bearings;
4.Corrosion bearings.
The reason why silicon nitride ceramic ball bearings can work in special environments and conditions is entirely due to the performance of silicon nitride ceramics. Silicon nitride ceramics make ceramic bearings have the following advantages:
1. High speed
The weight of the ceramic material is only 40% of the weight of the same steel material, and its low density can realize the light weight and high speed of the bearing, so that the ceramic bearing can suppress the increase of the rolling element load and slip caused by the centrifugal force when the ceramic bearing rotates at high speed , the speed of ceramic bearings is 1.3 to 1.5 times that of steel bearings, and its DN value can reach 3 million.
2. High rigidity
The elastic modulus of silicon nitride ceramics is much higher than that of metal, which is 1.5 times that of metal, so the elastic deformation after stress is small, and the rigidity relative to the load is high, which can increase the rigidity by about 15% to 20%, thus reducing the machine tool.
3. Long – life service
In addition, the mechanical strength of silicon nitride ceramics is not low, and its tensile strength and flexural strength are equivalent to those of metals; while its compressive strength is extremely high, about 5 to 7 times that of metal materials, especially under high temperature conditions, still It can maintain high strength and hardness, and the strength remains basically unchanged even at 1200°C. In the case of foreign matter mixed in, ceramic balls rarely cause spalling failure. Therefore, ceramic bearings with good indentation resistance usually have a longer The service life of steel bearings is generally 3 to 5 times higher than that of steel bearings.
4. Low heat radiation
Since the friction coefficient of silicon nitride ceramic materials is small, which is about 30% of standard bearing steel, compared with metal materials, silicon nitride ceramics have poor thermal conductivity, so the heat generated by ceramic bearings is small during operation, which can be used Extends the life of the grease.

Silicon Nitride Ball Bearing

Aluminum Nitride (AlN) Ceramic Crucible

Due to its high thermal conductivity (≥170W/m.k), aluminum nitride ceramic crucibles can be used for heat conduction to achieve heating effects, and are widely used in electronic equipment, such as gas atomization of electronic devices.

Aluminum nitride crucibles can also be used as containers for vacuum evaporation and metal smelting, especially suitable for vacuum evaporation crucibles for aln.
Because aluminum nitride ceramics are heated in a vacuum with low vapor pressure and will not pollute aluminum even if they decompose.
In the semiconductor industry, using an aluminum nitride crucible instead of a quartz crucible to synthesize arsenide can completely eliminate the pollution of Si to GaAs and obtain high-purity products.

Aluminum Nitride Ceramic Crucibles

Other Typical Applications of Aluminum Nitride Ceramics
1. Application of optical communication devices
2. Dedicated refrigerator
3. LED industry
4. Automotive electronic modules
5. High efficiency power module
6. High-frequency microwave applications

Aluminum Nitride Ceramic Components

Thick Film Metallized Ceramic

Alumina-Metallized-Ceramic-Parts

Innovacera can provide Thick Film Metalizing Ceramics. Metalization is a coating of metal material with good adhesion on the ceramic.This can be followed by a barrier diffusion layer of electrolytic pure Nickel (Ni). The third layer of gold (Au) or other precious metal, results in a tightly sealed ceramic to metal assembly ready for the soldering or brazing process. Unmetalized sections of the part can also be glazed.

Metallized-Ceramic-Parts

Specification
Ceramic Materials: 95%, 99% alumina, AlN, BeO
Metallization Materials: Mo/Mn; W/Mn (BeO only)
Metallization thickness: 25±10um; 8-15um(W/Mn)
Plating Materials : Ni/Ag/Au
Plating Thickness: 2-10um
Pin full strength: 4200kgf/cm2 avg. (at Φ3.0mm pin)

Benefits
• Strong, robust bond
• Minimal substrate deformation
• Universal applicability for ceramic metal joining
• High processing speeds
• Uniform coating, thickness and density

Applicatons
• Feed-through insulators
• Headers
• High-power receptacles
• Insulating discs
• Insulating rings and cylinders
• Precipitator products
• Power Switches
• Vacuum Interrupters
• SCR Housing
• Windows
• X-Ray tubes

Typical Ceramic Composition
95%, 99% Alumina Ceramic Components
AlN Metallized Ceramic Substrate
BeO Metallized Ceramic Substrate

Alumina Metallized Ceramic Parts

INNOVACERA’ s Silicon Nitride Ceramic Heater

Innovacera is a professional advanced ceramic materials and parts manufacturer. Ceramic heaters are our strength productions as well. And we not only have alumina ceramic igniters, but also silicon nitride ceramic igniters.

Characteristics of Si3N4 Igniters:

Silicon Nitride Ceramic Igniter

1.Silicon nitride ceramic igniter is the latest and most advanced application of hot surface ignition technology.

2.Silicon nitride has outstanding advantages:
> High working temperature
> Fast heating speed
> Compactness and solidity
> Long working life

3.The working voltage of the silicon nitride igniters extends from 4V to 240V, and the power is from 10W to 750W.

The applications of Silicon Nitride Heating Element:
1.Gas heating equipment and Water heater
2.Gas stove
3.Fuel heating equipment
4.Gas burner
5.Burners for Commercial/Research

Silicon Nitride Heater’s Dimension power and input voltage are customizable according to your requirement. If you have any needs, please contact us with no hesitation!

Silicon Nitride Ceramic Heater

Production Technology-High Temperature Co Fired Ceramics (HTCC)

HTCC is an acronym for High-temperature co-fired ceramics; HTCC ceramic wood pellet stove is made up of high melting point metal heating material such as tungsten, molybdenum or molybdenum – manganese and 92-96% alumina ceramic substrates. The metal heating resistance slurry is printed onto the tape casting ceramic green body according to the design requirement, several layers of ceramic green body are then laminated together and is fired at 1500 ~ 1600 ℃ high temperature, with the aid of 4-8% sintering additive, to form the alumina ceramic heating element.

They are deployed in the following areas:
1. Heating applications above 750°C, in which standard heating cartridges would have long since failed.
2. Very precise, rapid heating due to the extremely low thermal mass .
3. Efficient hot gas generation through the extremely large heat transfer surface area. Our heater portfolio covers a broad performance spectrum (depending on the desired
purpose) and various patented structural forms. In addition to this the wood pellet burner can be designed on an individual customer basis and be equipped with a complete electrical connection technology.

Wood Pelelt Stove

Systems

Straw burner Other biomass burner Wood pellet burner
Wood chips burner Straw burner Other biomass burner

Wood pellet Stove

Further product advantages:
• Ready assembled, easy-to-install systems
• Space-saving, noiseless and impervious to overheating
(in case the blower fails)
• Extremely long-lasting and resilient
• Minimal energy consumption
• Completely electrically insulated
• No exposed electrical contacts
• No sensitive welding points
• Long lasting (non aging)
• Time to ignition 60~90 seconds
• Available in 100V / 120V / 220V / 240V AC
• Fully electrically insulated with no exposed electric contacts
• Impervious to oxidation and corrosion
• Ignite wood pellet, wood chips, split logs, straw and
other biomass
• Comply with RoHS, REACH regulation on Hazardous Subsctances

Not without reason, the high temperature heating
elements pellet igniter is the reliable standard ignition
system for pellet heating systems in Europe-hundreds
of satisfied customers speak for themselves.

Ceramic Igniters For Solid Fuel Furnaces

230V Ceramic Igniter

Model	Voltage/	Size	Ceramic Socket		Wire
			Ceramic Socket
	Power		Ceramic	Metal kit
INC-H1-1	230V 210W	90Φ10.5φ6.5mm	OD17.535/OD2445/OD25*35	–	300-500mm
INC-H1-2	230V 225W	90Φ10.5φ6.5mm	OD17.535/OD2445/OD25*35	–	300-500mm
INC-H1-3	230V 240W	90Φ10.5φ6.5mm	OD17.535/OD2445/OD25*35	–	300-500mm
INC-H1-4	230V 255W	90Φ10.5φ6.5mm	OD17.535/OD2445/OD25*35	–	300-500mm

230V Alumina Ceramic Igniter for Stove

Model	Voltage/	Size			Wire

	Power		Ceramic	Metal kit
INC-H2-1	230V 160W	90Φ10.5φ6.5mm	OD17.535/OD2445/OD25*35	G3/8”	300-500mm
INC-H2-2	230V 180W	90Φ10.5φ6.5mm	OD17.535/OD2445/OD25*35	G3/8”	300-500mm

120V 230W Alumina Ceramic Heater for Burner

Model	Voltage/	Size	Ceramic Socket		Wire
			Ceramic Socket
	Power		Ceramic	Metal kit
INC-H3-1	120V 230W	90Φ10.5φ6.5mm	OD17.535/OD2445/OD25*35	G3/8”	300-500mm

230V 300W 350W Pellet Igniter for Biomass Burner

Model	Voltage/	Size	Ceramic Socket		Wire
			Ceramic Socket
	Power		Ceramic	Metal kit
INC-H4-1	230V 350W	108Φ11.5φ6.5mm	OD17.5*35	–	300-500mm
INC-H4-2	230V 300W	108Φ11.5φ6.5mm	OD17.5*35	–	300-500mm

150W 170W 230W High Temperature Ceramic Heater

Model	Voltage	Size	Ceramic Socket		Wire
			Ceramic Socket
	/Power		Ceramic	Remark
INC-H5-1	230V 150W	70Φ10.5φ6.5mm	OD6.5*35	Pluggability	300-500mm
INC-H5-2	230V 170W	70Φ10.5φ6.5mm	OD6.5*35	Pluggability	300-500mm
INC-H5-3	230V 230W	70Φ84-133φ6.5mm	OD6.5*35	Pluggability	300-500mm
INC-H5-4	230V 150W	70Φ10.5φ6.5mm	OD6.5*35	Pluggability	300-500mm

Alumina Ceramic Heater

Alumina Ceramic Pellet Stove Igniter 120V 230V

A pellet stove igniter is a very important component in pellet stoves, which are widely used for heating pellet burners, pellet stove, pellet boiler, gas heating systems and so on.Generally, pellet igniter is responsible for initiating the combustion process by igniting the wood pellets.

Different voltages are used in different power systems. Typically, you can find pellet stove igniters designed for either 120V or 230V power systems. The voltage requirement should be specified by the manufacturer for the particular igniter model.

Alumina Ceramic Heater

A 120V pellet stove igniter is designed to operate with a standard 120-volt electrical supply commonly found in North America. On the other hand, a 230V pellet stove igniter is designed for use with a 230-volt electrical supply, which is more commonly used in European countries and other parts of the world.

It is essential to match the voltage requirement of the pellet boiler igniter with the power supply available in your specific location. Using an igniter with the incorrect voltage can lead to improper functioning or potential damage to the igniter and the stove.

When purchasing a wood pellet stove, make sure that you select the correct voltage option based on your electrical system’s specifications and the requirements specified by the stove manufacturer. It’s always recommended to consult the stove manufacturer’s documentation or contact their customer support for guidance on the appropriate igniter voltage for your specific pellet stove model.

300w Alumina Ceramic Igniter

120V 230V Alumina Pellet Igniter

An alumina pellet igniter is a type of ignition device that utilizes alumina pellets as the primary ignition material. Alumina, also known as aluminum oxide (Al2O3), is a ceramic material with excellent thermal and electrical insulation properties, which makes it suitable for igniter applications.They are designed to generate heat when applied an electrical current, allowing them to ignite or initiate a combustion process in various systems.

When it comes to the voltage requirements of pellet stove igniters, they can vary depending on the specific model and manufacturer. Typically, you can find pellet stove igniters designed for either 120V or 230V power systems. The voltage requirement should be specified by the manufacturer for the particular igniter model.

Alumina igniters offer advantages such as high-temperature resistance, electrical insulation, and reliability. They can withstand the high temperatures generated during ignition processes, and their ceramic composition ensures a safe due to controlled ignition source.

Ceramic Igniter for Pellet Stove Advantages

1) Higher temperature, about twice of traditional metal sheathed heater;

2) Shorter ignition time, about 60~90 seconds

3) Electrically insulated with no exposed electric contacts

4) Wear and corrosion resistance

5) Long life time

6) Easy to install and replace

7) Long-lasting (non-aging). Tested to 100,000 cycles.
8) 800~1100°C at steady-state temperature. Impervious to oxidation and corrosion.
9) Ignite kerosene, wood chips, split logs, coal briquettes or other biomass, corn, etc.

120v / 230v Alumina Pellet Stove Igniter