Alumina ceramic strengthening process
August 26, 2019
In order to enhance the alumina ceramics and significantly improve its mechanical strength, a new alumina ceramic strengthening process has been introduced abroad. The process is novel and simple, and the technical means adopted is to apply a layer of silicon compound film on the surface of the alumina ceramic by electron beam vacuum coating, sputtering vacuum coating or chemical vapor deposition, and heat at 1200 ° C to 1580 ° C. Treatment to temper alumina ceramics.
The mechanical strength of the reinforced alumina ceramic can be greatly increased on the basis of the original, and an alumina ceramic having an ultrahigh strength is obtained.
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High hardness
It has been determined by the Shanghai Institute of Ceramics of the Chinese Academy of Sciences to have a Rockwell hardness of HRA80-90, which is second only to diamond, far exceeding the wear resistance of wear-resistant steel and stainless steel.
2. Excellent wear resistance
According to the Institute of Powder Metallurgy, Central South University, its wear resistance is equivalent to 266 times that of manganese steel and 171.5 times that of high chromium cast iron. According to our customer tracking survey for more than ten years, we can extend the service life of the equipment by at least ten times under the same working conditions.
3. Light weight
Its density is 3.5g/cm3, which is only half of steel, which can greatly reduce the equipment load.