Alumina Ceramic Feature

Alumina Ceramic Feature

Alumina is the most well-known and most commonly used fine ceramic material. It has the same sintered crystal body as sapphire and ruby. It has been used for decades in electrical components for its high electrical insulation, and is widely used in mechanical parts for its high strength, and corrosion- and wear-resistance.
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Product Details

Alumina is the most well-known and most commonly used fine ceramic material. It has the same sintered crystal body as sapphire and ruby. It has been used for decades in electrical components for its high electrical insulation, and is widely used in mechanical parts for its high strength, and corrosion- and wear-resistance.

 

【Advantage】

- Mechanical properties: High strength and high hardness.

- Thermal properties: High heat resistance and high thermal conductivity.

-Other properties: High electrical insulation, high corrosion resistance and biocompatibility.

 

【Technical Parameters】

Series/Item

92 Series

95 Series

AL2O3(%)

≥92

≥95

Hardness(Mohs)

9

9

Water absorption(%)

≤0.02

≤0.02

Breaking strength(n/nm)

40

42

Bending strength(Mpa)

255

275

Bulk density(g/cm³)

≥3.60

≥3.68

 

Ceramic Item

Index

Rockwell Hardness

80-90HRA

 Compressive Strength

≥850MPa

KIC Fracture Toughness

≥4.8MPa.M1/2

Thermal Conductivity

20W/m.k

Coefficient of Thermal Expansion

7.2×10-6m/×m.k

 

Welcome to email me at john.zhang@zbqishuai.cn if you are interested.

 


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