Alumina seramiikibụ ụdị ihe seramiiki mejupụtara nke aluminom oxide (AI2O3), ejiri mee ihe dị ka ihe mkpuchi maka akụrụngwa eletrik.Alumina seramiikinwere ezi conductivity, n'ibu ike, na elu okpomọkụ iguzogide. Njirimara ya na-eme ka ọ bụrụ otu n'ime ceramik ndị a na-ejikarị eme ihe na nhazi, eyi na gburugburu ebe na-emebi emebi.
1. Isi ike dị elu
Rockwell hardness bụ HRA80-90, ike siri ike dị ala karịa diamond, karịa karịa nkwụchi nke nchara na-eguzogide iyi na igwe anaghị agba nchara.
2. Magburu onwe eyi iguzogide
N'ịbụ ndị ụlọ ọrụ nyocha ọkachamara tụrụ atụ, nguzogide iyi ya bụ oge 266 nke ígwè manganese. Ịgba ígwè nkedo 171.5 ugboro, dị ka ihe karịrị afọ iri nke ndị ahịa nyochaa nyocha, n'okpuru otu ọnọdụ ọrụ, nwere ike ịgbatị ndụ ọrụ nke akụrụngwa ma ọ dịkarịa ala ugboro iri.
3. Ibu arọ
Njupụta ya nke 3.5g / cm3 bụ naanị ọkara nke ígwè, nke nwere ike belata ibu ngwá ọrụ.
| 技术参数(Nka nka) | ||
| 项目(Project) | 单位(Nkeji) | 数值(Uru ọnụọgụgụ) |
| 材料(Ihe) |
| Al2O3> 99.5% |
| 颜色(Agba) |
| 白色,象牙色(White,Ivory) |
| 密度(Njupụta) | g/cm3 | 3.92 |
| 抗弯强度( Ike Flexural) | MPa | 350 |
| 抗压强度(ike mkpakọ) | MPa | 2,450 |
| 杨氏模量(Modul nke Young) | GPA | 360 |
| 抗冲击强度(Mmetụta Mmetụta) | MPa m1/2 | 4-5 |
| 维泊尔系数(WeibullỌnụọgụ) | m | 10 |
| 维氏硬度(Vickers Hardness) | HV 0.5 | 1,800 |
| 热膨胀系数(ọnụọgụ Mgbasawanye okpomọkụ) | 10-6K-1 | 8.2 |
| 导热系数(Thermal Conductivity) | W/mk | 30 |
| 热震稳定性(Thermal Shock Stability) | ∆T Celsius | 220 |
| 最高使用温度Ojiji kachaOkpomọkụ) | Celsius C | 1,600 |
| 20°C体积电阻(20°C nguzogide olu) | Ωcm | >1015 |
| 电介质强度(Dielectric Ike) | kV/mm | 17 |
| 介电常数(Dielectric Constant) | εr | 9.8 |
