Industrial Ceramics-Alumina Ceramics Advantages and Disadvantages

19-08-2020

Industrial Ceramics-Alumina Ceramics Advantages and Disadvantages 

Industrial Ceramics

1. The Rockwell hardness of alumina ceramics is HRA80-90. The hardness of alumina ceramics is second only to that of diamond, which far exceeds the wear resistance of wear-resistant steel and stainless steel. 

2. The wear resistance of alumina ceramics is excellent, which is 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, under the same working conditions, the service life of the equipment can be extended at least ten times. 

3. Alumina ceramics are light in weight and have a density of 3.5g/cm3, which is only half that of iron and steel. It can greatly reduce equipment load. 

4. Alumina ceramics are high temperature resistant and can be used for a long time at 1600 degrees. 

5. Alumina ceramic has strong corrosion resistance. 

6. Alumina ceramics have good electrical insulation performance, especially at high temperature. The thickness of alumina ceramics can withstand over 8000V voltage per millimeter. 

7. Alumina ceramics have low toughness, poor thermal shock resistance, and can not withstand drastic changes in temperature. (shortcomings)

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