1.High hardness;
2.High kub tsis kam: Alumina ceramics muaj thermal stability zoo, uas txhais tau hais tias lawv tau siv dav hauv cov teb uas yuav tsum tau ua haujlwm kub.
3.High hnav tsis kam: Kev hnav zoo heev ntawm alumina ceramics ua rau nws siv dav hauv kev ua haujlwm ntawm hnav- cov khoom siv tiv thaiv ceramic.
4.High resistivity: Alumina ceramics yog cov khoom siv hluav taws xob rwb thaiv tsev.
5.High corrosion kuj, nws tsuas yog me ntsis soluble nyob rau hauv dej thiab insoluble nyob rau hauv muaj zog acid thiab alkaline daws.Alu- mina ceramics muaj tshuaj stability zoo.Nws yuav siv tau nyob rau hauv kev ua hauj lwm tej yam kev mob uas yuav tsum tau siab - kub thiab hnav- tiv taus ib puag ncig.Xws li kub controllers forvarious me me khoom siv hluav taws xob, cov khoom siv hluav taws xob hauv tsev, Cov khoom siv cua sov, cov qauv hlau, cov tsev, nkoj tsim, thiab lwm yam ..
|
Khoom npe |
Txoj Haujlwm Kev Ua Haujlwm |
chav tsev |
99 alumina plooj (porcelain). |
96 alumina plooj (porcelain). |
95 alumina plooj (porcelain). |
|
Cov khoom xyaw tseem ceeb |
99% Al₂O₃ |
96% Al₂O₃ |
95% Al₂O₃ |
||
|
cov khoom siv |
Qhov ntom |
g/cm³ |
3.9 |
3.6 |
3.6 |
|
nqus dej |
% |
0 |
0 |
0 |
|
|
sintering kub |
degree |
1700 |
1680 |
1650 |
|
|
lub cev muaj zog |
Hardness |
HV |
1700 |
1500 |
1400 |
|
Flexural zog |
Kgf/cm² |
3500 |
3000 |
2800 |
|
|
Compressive zog |
Kgf/cm² |
30000 |
25000 |
22000 |
|
|
Fracture toughness |
Mpa·m³/² |
4 |
3-4 |
2.8-3.5 |
|
|
Thermal khoom |
Ua haujlwm kub siab tshaj plaws |
degree |
1500 |
1450 |
1400 |
|
Thermal expansion coefficient 0-1000 degree |
/ degree |
8.0x10^-6 |
8.0x10^-6 |
8.0×10^-6 |
|
|
Thermal shock tsis kam |
T (degree) |
200 |
220 |
210 |
|
|
thermal conductivity |
w/m·k |
31.4 |
25 |
22 |
|
|
Cov yam ntxwv hluav taws xob |
Volume resistivity (25℃-300 degree) |
Ω / cm² |
15.9 |
14 |
13 |
|
20 degree |
Ω / cm² |
>10^12 |
>10^12 |
>10^12 |
|
|
100 degree |
Ω / cm² |
10^12-10^13 |
10^12-10^13 |
10^12-10^13 |
|
|
300 degree |
Ω / cm² |
>10^12 |
>10^10 |
>10^10 |
|
|
Lub zog dielectric zog |
KV/mm |
18 |
18 |
16 |
|
|
Dielectric qhov tsis tu ncua (100Mhz) |
(E) |
10 |
9.5 |
9.0 |
|
|
Dielectric tangent (tg δ) |
- |
0.4x10^-3 |
0.4x10^-3 |
0.4×10^-3 |
Cim npe nrov: 96% alumina khoom, Tuam Tshoj 96% alumina khoom manufacturers, lwm tus neeg, Hoobkas
