陶瓷用碳化硅
陶瓷用碳化硅
碳化硅陶瓷是一种高科技陶瓷, 主要由亚微米碳化硅粉末制成. 碳化硅硬度高, 和成熟技术制成的碳化硅陶瓷具有良好的耐磨性, 耐高温、耐腐蚀.
Why SiC is Ideal for Ceramics
- 高硬度: 莫氏硬度为 9.5, silicon carbide is nearly as hard as diamond, providing ceramics with excellent wear resistance.
- 高导热性: SiC has exceptional thermal conductivity, 使其适用于高温应用.
- 低热膨胀: The low thermal expansion coefficient of silicon carbide ensures dimensional stability under varying temperatures.
- 耐腐蚀性能: SiC is highly resistant to corrosion from acids, 碱, and molten metals, enhancing the longevity of ceramic products.
- 耐高温: Silicon carbide can withstand extreme temperatures, making it ideal for use in furnace linings and high-temperature machinery.
Applications of Silicon Carbide Ceramics
Ceramic Bearings
SiC bearings provide excellent wear and corrosion resistance, making them ideal for use in extreme environments such as high-temperature or chemically harsh settings.
Armor Ceramics
Silicon carbide is widely used in the production of lightweight ceramic armor due to its exceptional hardness and toughness. This armor is used in military applications and personal protective equipment.
窑具
Silicon carbide kiln furniture is designed to endure high temperatures and rapid heating cycles without cracking, warping, or degrading over time.
Wear-Resistant Ceramics
Silicon carbide ceramics are often used in pumps, 阀门, 和密封件, where extreme wear and chemical corrosion occur.
换热器
With high thermal conductivity and corrosion resistance, SiC ceramics are used in heat exchangers, especially in chemical processing applications.
Grades of SiC for Ceramics
- 黑碳化硅 (C)
- High hardness and thermal conductivity.
- Primarily used in abrasive and cutting tools.
- 绿碳化硅 (GC)
- Purity of over 99%, used in fine ceramics for high-precision applications such as semiconductor manufacturing.
- 反应结合碳化硅 (红细胞干细胞)
- Highly durable and often used in kiln furniture and high-stress ceramic components.
- 烧结碳化硅 (碳化硅)
- Known for its exceptional hardness and corrosion resistance, often used in mechanical seals and pump components.
碳化硅磨料的类型
黑碳化硅
黑碳化硅是一种应用广泛的磨料产品, 具有优异的耐磨性, 高硬度, 高密度, 杂质低等优点, 常用于喷砂研磨, 抛光, 自由研磨, 制作各种磨具, ETC.
绿碳化硅
绿碳化硅由石英砂和石油焦在电阻炉中提炼而成, 由于其化学性质相对稳定, 高导热性, 热膨胀系数低, 和良好的耐磨性.
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