According the content, alumina ceramics are classified by #75, #85, #92, #95 and #99 ceramic, also with some more detailed categories. At present, #95 ceramic has the largest production, and it is most widely used in the market. With high hardness and abrasive resistance, and small dielectric loss, its performance can fulfill most of the industry technical requirements, which is much better than #75~#92 ceramics, while the production cost is only a little higher than #75 ceramic, so the production is the largest. However, requirement is increasing with development of technology, in many application cases, more and more #95 ceramic is replaced by #99 ceramic.

Application range of alumina ceramics are extending with the increase of economic increase. Overall, #95 ceramic still occupies most of the market, advantage of high performance and low cost will be further reflected. #75~#92 ceramics will also capture some market share for its improved technology. Market of #99 ceramic will keep on increasing, and replace #95 ceramic in many new application. Due to the increased demand from market, further research of #99 ceramic production process is quite urgent. Propelled by normalized production of raw material, and improved superfine hyperpure powder process technology, quality of #99 ceramic will be improved further, and the situation of low technology and decentralized operation in multi-factory will be broken, manufacturers that with modernized management and new product development ability will finally occupy the market.