Silicon carbide ceramics not only have excellent Mechanical properties at room temperature, such as high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient, and high temperature mechanical properties(Strength, creep resistance, etc.) are the best among known ceramic materials. The biggest feature of silicon carbide is its high high temperature strength. The strength of ordinary ceramic materials will be significantly reduced at 1200 ~ 1400 degrees Celsius, while the bending strength of silicon carbide is at 1400 degrees Celsius. It still maintains a high level of 500 ~ 600MPa, so its working temperature can reach 1600 degrees Celsius; the silicon carbide plate is hard and brittle, has a small expansion coefficient, can withstand rapid cooling and heating, and is not easily deformed. Silicon carbide has the smallest density, so ceramic parts made of silicon carbide are the lightest.
Alumina Ceramics is a ceramic material based on aluminum oxide(Al2O3). Thick film integrated circuit. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that its wear resistance is equivalent to 266 times that of manganese steel and 171.5 times that of high chromium cast iron. . Alumina ceramic is a high-quality insulating material that is often used to make ceramic insulation sheets, insulating rings and other components. Alumina ceramics can withstand high temperatures up to 1750°C (alumina content is more than 99%). >
