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PARTICULAR
PRODUCTION
Kinds of ceramics parts,the material
of which are from alumina,steatite,etc. It has the advantages
of high temperature resistance, high insulation, high
strength,good stability,etc and can be used in different
circumstances.Mechanical and Electrical Specification
Industrial ceramics has excellent electro-mechnical and
chemical characteristics. It has the advantages of good
chemical stability, high temperature resistance,corrosion-proof,
withstand high voltage attack, applied widely in mechanic,
chemical, technical, electronic, textile, railway and
aeronautics area.
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TENACITY
ALUMINA |
99%
ALUMINA |
95%
ALUMINA |
92%
ALUMINA |
75%
ALUMINA |
STEATITE |
MULLITE |
CORDIERITE |
ZIRCONIA |
| Composition |
70%Al2O3
30%ZrO2
|
99%Al2O3 |
95%Al2O3 |
92%Al2O3 |
75%Al2O3 |
MgO
SiO2 |
3Al2O3
2SiO2 |
2MgO
2Al2O3
5SiO2 |
ZrO2
|
| Material
Choperties |
Density |
g/cm3 |
4.3 |
3.9 |
3.6 |
3.5 |
3.2 |
2.8 |
3 |
2.5 |
6.0 |
|
Water
Absorption |
% |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
Firing
Temperature |
°C |
1,600 |
1,700 |
1,680 |
1,650 |
1,430 |
1,350 |
1,300 |
1,350 |
1,600 |
| Mechanical
Properties |
Hardness |
HV |
2,000 |
1,700 |
1,500 |
1,400 |
1,000 |
800 |
1,000 |
800 |
1,300 |
|
Flexural
Strength(4pt) |
Kgf/cm2 |
4,500 |
3,500 |
3,000 |
2,800 |
2,000 |
900 |
1,100 |
900 |
11,000 |
|
Compressive
Strength |
Kgf/cm2 |
45,000 |
30,000 |
25,000 |
20,000 |
10,000 |
4,000 |
6,000 |
3,500 |
25,000 |
|
Rupture
Tenacity |
Map.m3/2 |
5-6 |
4 |
3-4 |
3 |
---- |
---- |
---- |
---- |
6-8 |
| Thermal
Properties |
Maximum
Use Temperature |
°C |
1,500 |
1,500 |
1,450 |
1,400 |
1,100 |
1,100 |
1,000 |
1,000 |
---- |
|
Thermal
Expansion
0-1000°C |
/°C |
8.0x10-6 |
8.0x10-6 |
8.0x10-6 |
7.8x10-6 |
6x10-6 |
6x10-6 |
6x10-6 |
4x10-6 |
9.5x10-6 |
|
Thermal
Shock Resistance |
T(°C) |
250 |
200 |
220 |
220 |
200 |
200 |
300 |
250 |
360 |
|
Thermal
Conductivity |
W/m.k
(25°C-300°C) |
- |
31.4
15.9 |
25
14 |
21.8
12.6 |
15
10 |
2.5
---- |
4.2
---- |
1.3
---- |
3
---- |
| Electrical
Properties |
Volume
Resistivity
20°C
100°C
300°C |
>>.cm |
>1012
1012-1013
>1010 |
>1012
1012-1013
>1012 |
>1012
1012-1013
>1010 |
>1012
1012-1013
3.1x109 |
>1012
1012-1013
>109 |
>1012
1010-1012
5x108 |
>1012
1010-1012
---- |
>1012
107-108
3x105 |
>1012
----
5x109 |
|
Dielectric
Strength |
KV/mm |
18 |
18 |
18 |
16 |
15 |
10 |
10 |
10 |
---- |
|
Dielectric
Constant
(100 Mhz) |
(E) |
10 |
10 |
9.5 |
9.4 |
8.3 |
5.8 |
6 |
6 |
---- |
|
Dielectric
Dissipateic Dissipation Factor |
(tg
¦Ä) |
0.4x
10-3 |
0.4x10-3 |
0.4x
10-3 |
0.4x10-3 |
0.4x10-3 |
0.4x
10-3 |
0.4x10-3 |
0.4x10-3 |
---- |
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