Industrial ceramics possess a series of superior properties such as high-temperature resistance, corrosion resistance, wear resistance, and erosion resistance. They can replace metal materials and organic polymers in harsh working environments and have become indispensable in traditional industrial transformation, emerging industries, and high-tech fields. They have broad application prospects in energy, aerospace, machinery, automotive, electronics, and chemical industries. Common industrial ceramics include alumina ceramics (Al2O3), zirconia ceramics (ZrO2), aluminum nitride ceramics (AlN), silicon nitride ceramics (Si3N4), and silicon carbide ceramics (SiC).
| Material | Introduction | Picture |
| Al2O3 | Aluminum oxide is a white or beige ceramic that utilizes its excellent electrical insulation properties. Since its early application in various electronic components, it has been widely used and is the lowest cost material in precision ceramics. Widely used in industries such as electronic sealing, structural components, and heat-resistant and corrosion-resistant parts. High purity alumina has higher mechanical strength and excellent corrosion resistance, and can produce large component products. In addition, due to its excellent plasma resistance, it is widely used in the semiconductor industry, such as CVD equipment, etching equipment, and other components. |  |
| ZrO2 | Zirconia is a material with high mechanical strength and fracture toughness at room temperature. Its coefficient of thermal expansion is similar to that of metals, and it is suitable for bonding with metal materials. Zirconia has relatively fine grains, which can achieve high roughness processing. It also has excellent biocompatibility and is widely used in the biomedical industry. Zirconia ceramics are mainly divided into yttrium stabilized zirconia, magnesium stabilized zirconia, and cerium stabilized zirconia based on the added stabilizer. Magnesium stabilized zirconia maintains good mechanical properties at higher temperatures (600 ℃). |  |
| AIN | Aluminum nitride ceramics have excellent thermal conductivity and thermal shock resistance, as well as good insulation properties. Due to liquid-phase sintering and the absence of second phases at grain boundaries, the crystal structure is very dense and has good resistance to plasma corrosion. Widely used as spare parts for substrates and semiconductor manufacturing equipment. |  |
| Si3N4 | Silicon nitride is a gray ceramic with high fracture toughness, excellent heat shock resistance, and relatively difficult permeability to molten metals. By utilizing these characteristics, they can be applied to internal combustion engine components such as automotive engine parts, welding machine blowpipe nozzles, and especially components that need to be used in harsh environments such as overheating. Utilizing its high wear resistance and mechanical strength, its applications in bearing rollers, shaft bearings, and semiconductor production equipment spare parts are constantly expanding. |  |
| SiC | Silicon carbide is a type of black ceramic that has a smaller decrease in mechanical strength and higher corrosion resistance compared to other precision ceramics in high-temperature environments (1000 degrees). Due to its strong covalent bonds, it has the highest hardness and excellent corrosion resistance among various precision ceramics. It also has good sliding properties in liquids. By utilizing these characteristics, it is widely used in mechanical seals, chemicals, bearings, and other fields. Due to its dense sintering, mirror processing can be carried out, with high temperature resistance exceeding 1400 degrees, heat shock resistance, excellent chemical stability, high thermal conductivity. Its high-purity silicon carbide is often used as a component in semiconductor manufacturing equipment. |  |
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