99% Alumina Ceramic Substrates

99% Alumina Ceramic Substrates

99 alumina refers to alumina materials with a purity of 99% or higher, usually made from chemically pure or high-purity alumina as raw  

materials, and processed through multiple processes such as high-temperature calcination, crushing, shaping, and sintering. 

Compared with 96 alumina, 99 alumina has higher chemical purity, density, and hardness, as well as better high-temperature stability 

and corrosion resistance 99 alumina is widely used in fields such as electronics, machinery, chemical industry, aerospace, etc. 

In the field of electronics, 99 alumina is commonly used to manufacture high-frequency electronic components, integrated circuit 

packaging, dielectrics, and other devices; 

In the field of machinery, 99 alumina is mainly used to manufacture high hardness ceramic cutting tools, bearing balls, etc; 

In the chemical industry, 99% alumina can be used to manufacture catalysts and adsorbents; 

In the aerospace field, 99 alumina is commonly used to manufacture high-temperature structural components, aircraft engine components, etc.

Advantages of 99 alumina substrate:

High purity, typically reaching a purity level of 99.99%, with excellent electrical performance, high dielectric constant, and low dielectric loss.

Good high-temperature stability, able to work stably in high-temperature environments, usually able to withstand temperatures up to 1700 ℃.

High mechanical strength, high strength, high hardness, not easily damaged, can withstand large forces and pressures.

It has excellent corrosion resistance and is not corroded by most chemical substances, suitable for chemical media such as acid and alkali.

Thin substrates can be prepared, which is beneficial for the preparation of microelectronic devices.