Dec 01, 2022 Leave a message

What Is The Difference Between Alumina Ceramics And Ordinary Ceramics?

What is the difference between alumina ceramics and ordinary ceramics?
1) Main ingredients
Ceramics is a general term for pottery and porcelain. The main components of ceramics are silicate and aluminosilicate, refractory metal oxides, metal nitrides, borides, etc. The main component of alumina ceramics is alumina.
2) Category
Ceramics are a large category, and alumina ceramics are relatively a small category. Ceramic materials are usually divided into glass, glass ceramics, and engineering ceramics, among which engineering ceramics are divided into ordinary ceramics and special ceramics. Special ceramics are subdivided by application, and can be divided into structural ceramics and functional ceramics. Alumina ceramics are structural ceramics.
3) Features
Ceramics in the general sense generally have the characteristics of insulation, radiation resistance, corrosion resistance, heat resistance, opacity, and difficulty in absorbing water. The melting point of alumina is as high as 2050°C, and alumina ceramics can withstand high temperatures of more than 1,000°C, and their heat resistance is very good. In addition, alumina ceramics are inert, have strong corrosion resistance, and can effectively resist the influence of chemicals such as solvents and salt solutions. Because 95% (and above) alumina ceramics have a Mohs hardness of 9, it also has excellent wear resistance.
4) Purpose
The use of ceramics is very extensive. Take traditional ceramic products as an example, including daily-use ceramics, architectural and sanitary ceramics, industrial art ceramics, chemical ceramics, electrical ceramics and so on. Due to its special properties, alumina ceramics can be widely used in laser, semiconductor, medical, machinery, anti-wear engineering and other fields.

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