Excellent high temperature strength
High breaking strength
Excellent thermal shock-resistant
Resist to chemical corrosion
Lubricating property
Excellent wear resistance
|
Characteristics |
Unit |
95 Al2O3 |
99 Al2O3 |
ZrO2 |
GPSi3N4 |
BN |
Glass Ceramic |
|
Crystal Structure |
- |
hexagonal |
hexagonal |
tetragonal |
hexagonal |
hexagonal |
- |
|
Color |
- |
white |
ivory |
white |
gray |
white |
white |
|
Density |
g/cm³ |
3.65 |
3.88 |
5.95 |
3.22 |
2.26 |
2.55 |
|
Water Absorption |
% |
0 |
0 |
0 |
0 |
0.0-1.0 |
0 |
|
Young's Modulus |
Gpa |
280 |
350 |
205 |
295 |
670 |
65 |
|
Vickers Hardness |
Gpa |
14 |
20 |
12 |
18-20 |
- |
- |
|
Flexural Strength |
Mpa |
280 |
300 |
900 |
650 |
51 |
100 |
|
Compressive Strength |
Mpa |
2000 |
2500 |
2200 |
2200 |
23 |
500 |
|
Thermal Conductivity |
W/(m•K) |
18-25 |
30 |
2.2 |
25 |
20 |
1.70 |
|
Thermal shock resistance |
ΔT(C°) |
220 |
180-200 |
280-350 |
450-650 |
>1500 |
25-100 |
|
Max. Working Temperature |
C° |
1500 |
1700 |
850 |
1200 |
960 |
800 |
|
Volume Resistivity |
Ω . cm |
>10^15 |
>10^14 |
>10^12 |
>10^14 |
10^13 |
10^16 |
|
Dielectric Constant |
- |
9.50 |
9.80 |
26 |
8.20 |
4.08 |
6.02 |
|
Dielectric Strength |
kV/mm |
16 |
22 |
- |
16 |
375 |
40 |
Shenzhen HARD Precision Ceramics Co., Ltd. is a development, design, production, sales of advanced precision ceramic products.
HARD fine ceramic products are widely used in industrial machines and electronic equipment and devices. The superior electrical characteristics of fine ceramics are utilized in a variety of circuit boards and electronic parts. Their wear and corrosion resistance is beneficial in pumps nozzles and valve parts, and their high heat and thermal shock resistance is useful in ceramic engine parts.
