In precision mechanical devices, such as high-precision machine tools and various parts of aerospace equipment, the hardness and wear resistance of ceramics play a huge advantage. The polished surface can reduce the friction coefficient, making bearings and sleeves smoother during operation, reducing wear and energy loss. In addition, its high purity ensures the stability of material properties and can work reliably for a long time in complex mechanical environments. For example, in some auxiliary bearing components of aircraft engines, high-purity polished alumina ceramics can withstand the test of high temperature and high speed, improving the overall reliability of the engine.
