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Welcome to Dongguan many hardware Ceramics Co., Ltd., a manufacturer specializing in zirconia ceramics.

Ceramic dispensing valve ceramic plunger ceramic suction disc sucker

Specializing in alumina ceramic and zirconia ceramics processing and customization

National service consultation telephone 132-8888-6353 (WeChat No. 1)
Contact us

Dongguan many many hardware Ceramics Co., Ltd.
Contact: Mr. Han
Mobile phone: 13288886353
Tel: 0769-82926445
QQ:304871063
Mailbox: Duoxuduo2006@163.com
Website: bjyjpf.cn
Address: No. 6 Chuang Road, Shang Sha first industrial area, Changan Town, Dongguan.

99.5 alumina
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99.5 high alumina is white powder or fine sand. It has good fluidity, stable performance, and is difficult to dissolve in acid and alkali solution. It has good sintering properties. It is used as raw material for high alumina refractories, electromagnetic devices, polishing and grinding products. High density and large impact energy can greatly improve the grinding efficiency. The bottom wear can ensure the purity of the crushed material, and its wear resistance is 2030 times higher than that of the traditional ball stone. It has good chemical stability, corrosion resistance and can be used in acid medium.

Alumina has a wide range of applications: precision bearings, instruments, meters, pens, mechanical parts, punching holes, oil fields, hydrochloric acid laboratories, hardness measuring instruments, fishing gear, counterweight, decoration, finishing and other high-end industries.

99.5% alumina properties

Mechanical properties

Unit of measurement

parameter

density

Gm/cc (lb/ft3)

Three point eight nine

porosity

% (%)

Zero

colour

-

Beige

Bending strength

MPa (lb/in2x103)

Three hundred and seventy-nine

Elasticity coefficient

GPa (lb/in2x106)

Three hundred and seventy-five

Shear modulus

GPa (lb/in2x106)

One hundred and fifty-two

Bulk modulus of elasticity

GPa (lb/in2x106)

Two hundred and twenty-eight

Poisson's ratio

-

Zero point two two

compressive strength

MPa (lb/in2x103)

Two thousand and six hundred

hardness

Kg/mm2

One thousand four hundred and forty

fracture toughness

MPa m1/2

Four

Maximum no load service temperature

C (F)

One thousand seven hundred and fifty

Thermal energy



Thermal conductivity

W/m degrees K (BTU in/ft2 HR HR F)

Thirty-five

Coefficient of thermal expansion

10 - 6/ degrees C (10 - 6/ degree F)

Eight point four

specific heat

J/Kg? K (Btu/lb? F)

Eight hundred and eighty

electrical



Dielectric strength

Ac-kv/mm (volts/mil)

Sixteen point nine

Capacitance rate

@ 1 MHz

Nine point eight

Consumption factor

@ 1 kHz

Zero Point Zero Zero Zero two

Dissipation factor

@ 1 kHz

-

Volume resistivity

Ohm cm

>1014