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99% High-performance Alumina Ceramics Parts

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99% High-performance Alumina Ceramics Parts

Brand Name : ZG

Model Number : MS

Certification : CE

Place of Origin : China

MOQ : 1 PC

Price : 10USD/PC

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 1000 PCS

Delivery Time : 5-8 work days

Packaging Details : Strong wooden box for Global shipping

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99% High-performance Alumina Ceramics Parts

 

 

Alumina ceramic is akind of ceramic material with alumina(Al2o3)as the main body,which has the characteristics of high hardness,high strength,high wear resistance,high corrosion resistance,high temperature resistance and strong insulation.

 

The two most commonly used ceramic materials are 95% alumina and 9% alumina:
(1)95% alumina:Because ofits excellent performance,95% aluminais widely used in grinding and polishing processes, as wel as in the chemical and metalluraical industries. Mainly used as corrosion-resistant and wear-resistant parts.

 

(2) 99% alumina:99% alumina has high strength and can be used to make high-temperature crucibles,refractory furnace tubes and special wear-resistant materials, such as ceramic pumps, boltimellers,ceramicrollers,ceramicsealsandwatervalves.

 

 

  95Alumina 99Alumina 997Alumina 998Alumina
Color White Beige Beige Beige
Mechanical properties        
Density(g/cm²) 3.7 3.9 3.9 3.9
Compressive strength(MPa) 2500 2450 2500 2600
Tensile strength / / 150 /
Flexural strength(MPa) 380 310 400 /
Fracture toughness(MPam) 3 3.5 3.5 /
Vickers hardness(GPa) 13.7 15.2 17.2 18
Young's modulus(Pa) 300 350 370 360
Poisson's ratio 0.23 0.23 0.23 0.23
Thermal properties        
Thermal conductivity@25℃ 2Ω 2Ω 3Ω 3Ω
Thermal expansion@25-300℃(*10) 7.2 7.2 6.5 7.2
Thermal expansion@25-700℃(*10) 7.9 7.9 7.5 8.0
Electrical performance        
Dielectric constant@25℃(1MHz) 9.0 9.2 9.9 9.7
Dielectric strength 50 20 285 14
Dielectric loss 2.6 2 0.0001 1
Volume resistivity@ 25℃(Ωcm) 10*14 10*14 10*14 10*14
Volume resistivity@ 500℃(Ωcm) / / 2*10*10 /
Volume resistivity@ 1000℃(Ωcm) / / 2*10*4 /

 

 

99% High-performance Alumina Ceramics Parts


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