From semiconductor chips to new energy vehicles, and from steel metallurgy to environmental protection, high-temperature ceramic components support the development of high-end manufacturing with their unique performance advantages.
In modern industrial systems, furnace systems are the core equipment for material synthesis, heat treatment, energy conversion, and environmental protection. Whether it’s the diffusion process of semiconductor wafers, the sintering of lithium battery cathode materials, the continuous casting of steel, or the regenerative combustion of industrial waste gases, these processes are inseparable from extreme conditions such as high temperature, corrosion, wear, and thermal shock.
Their characteristics—high melting point, high hardness, chemical inertness, thermal shock resistance, and electrical insulation—make them key to overcoming these “metal bottlenecks.”
INNOVACERA provides the following ceramic components for various furnace systems.
1. Boron Nitride Ceramics (BN)
| Furnace System Type | Application Area | Key Components | Specific Application Method |
|---|---|---|---|
| Vacuum Furnaces, Crystal Growth Furnaces | Compound Semiconductors, Vacuum Coating | Crucibles, Evaporation Boats, Insulators | Crystal growth for wafer materials, or evaporation for OLEDs, metal coatings. |
| Powder Metallurgy Sintering Furnaces | Powder Metallurgy, Cemented Carbides | Sintering Boats, Mold Release Coatings | Holds metal powders during sintering, preventing adhesion to the boat. |
| Hot Pressing, Pressureless Sintering, Gas Pressure Sintering Furnaces | Electronic Ceramic Substrates, Power Semiconductors | Setter Plates, Hot Pressing Molds, Multi-layer Ceramic Clamps | Carries ceramic substrates (e.g., AlN, Si₃N₄) during sintering at 1600°C–1900°C without sticking or contamination. |
| High-Temperature, High-Pressure Equipment | Composite Materials | Hot Pressing Molds, Seals | Densification and forming of carbon/carbon composites and ceramic matrix composites. |
2. Alumina Ceramics (Al₂O₃)
| Furnace System Type | Application Area | Key Components | Specific Application Method |
|---|---|---|---|
| Tube Furnaces, Box Furnaces | Semiconductor/Photovoltaic, Lab Research | Furnace Tubes, Chambers | Serves as a sample container for high-temperature sintering, diffusion, and annealing in controlled atmospheres. |
| Pusher Furnaces, Shuttle Kilns | Lithium Battery Cathode Materials, Electronic Ceramics | Saggars, Pusher Plates | Used in continuous production for sintering materials like LFP, NMC, and electronic ceramic components. |
| Single Crystal Growth Furnaces | Semiconductors, Optical Crystals | Crucibles, Insulation Layers | Provides a stable, pure thermal environment for growing crystals like sapphire and silicon. |
3. Silicon Carbide Ceramics (SiC)
| Furnace System Type | Application Area | Key Components | Specific Application Method |
|---|---|---|---|
| Roller Hearth Kilns, Tunnel Kilns | Building Ceramics, Lithium Battery Materials | Kiln Rollers, Roller Bars | Transports ceramic tiles at 1200°C–1300°C or carries saggars during lithium cathode sintering. |
| Circulating Fluidized Bed Boilers | Power Generation, Solid Waste Treatment | Air Nozzles, Separator Liners | Resists erosion and corrosion from high-speed coal powder or waste fuel, extending equipment life. |
| High-Temperature Heat Exchangers | Petrochemicals, Waste Heat Recovery | Honeycomb Regenerators, Heat Exchange Tubes | Utilizes high thermal conductivity for efficient heat exchange, resistant to high-temperature corrosive gases. |
| Waste Incinerators | Solid/Hazardous Waste Treatment | Thermocouple Protection Tubes, Grate Bars | Protects sensors from erosion by high-temperature corrosive flue gases. |
4. Silicon Nitride Ceramics (Si₃N₄)
| Furnace System Type | Application Area | Key Components | Specific Application Method |
|---|---|---|---|
| Non-Ferrous Metal Melting Furnaces | Automotive Manufacturing, Aluminum Casting | Riser Tubes, Crucibles, Thermocouple Protection Tubes | Direct contact with aluminum melt (700°C–900°C) for low-pressure casting or temperature control. |
| High-Temperature Bearings/Seal Systems | Wind Power, Precision Machinery | High-Temperature Bearings, Seal Rings, Guide Rollers | Stable operation under unlubricated, high-speed, high-temperature conditions. |
| Advanced Heat Treatment Furnaces | High-End Equipment Manufacturing | Heating Element Insulators, Support Components | Provides high-strength support and electrical insulation at high temperatures. |
5. Zirconia Ceramics (ZrO₂)
| Furnace System Type | Application Area | Key Components | Specific Application Method |
|---|---|---|---|
| Optical Fiber Drawing Furnaces | Fiber Optic Communication | Guide Rollers, Fine Adjustment Wheels | Guides molten glass fibers above 2000°C; requires high temperature and wear resistance. |
| SOFC Systems | New Energy / Hydrogen Energy | Electrolyte Diaphragm Sheets | Core component of the fuel cell; conducts oxygen ions and separates fuel gases. |
| Steel Continuous Casting Systems | Steel Metallurgy | Metering Nozzles, Submerged Nozzles, Slide Gates | Controls the flow rate of molten steel above 1500°C; resists erosion and thermal shock. |
| Induction Melting Furnaces | Specialty Alloys, Precious Metals | Crucibles, Temperature Measuring Tube Protectors | Does not heat up in high-frequency electromagnetic fields; resists corrosion from molten metals. |
| Glass Melting Furnaces | Specialty Glass, Optical Glass | Stirrers, Homogenizers, Channel Liners | Resists corrosion from molten glass without contaminating the glass quality. |
How to Choose the Most Suitable Material
| Performance Requirement | Preferred Materials | Typical Scenarios |
|---|---|---|
| Maximum Service Temperature | Zirconia(ZrO2), Alumina (Corundum)(Al2O3) | Ultra-high temperature sintering furnaces, fiber drawing |
| High Strength and Thermal Shock Resistance | Silicon Carbide(SiC), Silicon Nitride(Si3N4) | Kiln rollers, high-temperature bearings, wear liners |
| High Purity and No Contamination | High-Purity Alumina(Al2O3), Boron Nitride(BN) | Semiconductor, photovoltaic, optical glass |
| Resistance to Molten Metal Corrosion | Silicon Nitride(Si3N4), Boron Nitride(BN), Silicon Carbide(SiC) | Aluminum/copper/magnesium melting furnaces, steel casting |
| Electrical Insulation and Thermal Conductivity | Boron Nitrid(BN), Alumina(Al2O3) | High-temperature heating element supports, electrode insulation |
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