Alumina Crucible

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seat: Beijing
Validity to: Long-term effective
Last update: 2017-11-17 19:36
Browse the number: 128
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Product details

Alumina Crucible,mainly used in the production of industrial ceramics,such as textiles and ceramics.99 porcelain is mainly used in the production casing Tancifaxin take over the seat of electronic products such as ceramics plates.

Alumina Crucible specifications 

AL2O3

99%

MgO

0.8%

Na2O

<0.15%

SiO2

<0.018%

Y2O3

<0.02%

Fe2O3

<0.02%

TiO2

<0.006%

CaO

<0.005%

 

Specifications of Alumina crucible

Items

Test condition

Unit


Average grain size


µm

3 - 5

Density


g/cm3

3.85

Water absorption


%

0

Hardness (Vickers)

HV0.5


1900

Flexual strength

Distance between bending points 80mm

MPa

340

Compressing strength


MPa

3600

Linear thermal expanding coefficient

20-500

1x106 mm/

6.5 – 7.5

20-800

6.5 - 8.0

Thermal conductivity

20

W/(m.K)

24

Dielectric strength


KV/mm

12

Volume resistivity

300

Ω.cm

1011

Dielectric constant

1MHz


9.3-10.6

Dielectric loss

1MHz


3x10-4

Thermal shock resistance

850

times

7



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