Alumina ceramics is a kind of ceramic material with Al2O3 as the main raw material and corundum (a-Al2O3) as the main crystalline phase. The sintering temperature of alumina ceramics is generally higher due to the melting point of alumina as high as 2050 C, which makes the production of alumina ceramics need to use high temperature heater or high-quality materials and high-grade refractories as kiln and kiln furniture, which to some extent limits its production and wider application. So what are its advantages?
Alumina ceramics have many advantages, such as high mechanical strength, high hardness, low dielectric loss at high frequencies, and because of its wide source of raw materials, relatively cheap price and mature processing technology, it is widely used in the fields of electronics, electrical appliances, machinery, textiles and aerospace. It also established its high position in the field of ceramic materials. It is reported that alumina ceramics are the most widely used oxide ceramics in the world.
Post time: Nov-18-2019