Alumina ceramicimhando yemidziyo yeceramic inonyanya kuumbwa nealuminium oxide (AI2O3), inoshandiswa sechinhu chinodzivirira chemagetsi emagetsi.Alumina ceramicine yakanaka conductivity, mechanical simba, uye yakakwirira-tembiricha kuramba. Hunhu hwayo hunoita kuti ive imwe yeanonyanya kushandiswa ceramics muchimiro, kupfeka, uye nharaunda dzinoparadza.
1. Kuoma kwepamusoro
Rockwell kuomarara iHRA80-90, kuoma kwacho kwakadzikira pane dhaimondi, zvakanyanya kudarika kupfeka kuramba kwesimbi isingachinjiki uye simbi isina tsvina.
2. Yakanakisa kupfeka kuramba
Yakayerwa nenyanzvi dzekutsvagisa masangano, kupfeka kwayo kuramba kwakaenzana ne266 nguva dzemanganese simbi. Gaoming cast iron 171.5 times, maererano nemakore anopfuura gumi ekuongorora kwevatengi, pasi pemamiriro akafanana ekushanda, inogona kuwedzera hupenyu hwebasa remidziyo kanenge kagumi.
3. Kurema kwakareruka
Kuwanda kwayo kwe3.5g / cm3 inongova hafu yesimbi, iyo inogona kuderedza zvakanyanya mutoro wemidziyo.
| 技术参数(Technical Parameters) | ||
| 项目(Project) | 单位(Chikwata) | 数值(Nhamba dzenhamba) |
| 材料(Zvinhu) |
| Al2O3>99.5% |
| 颜色(Ruvara) |
| 白色, 象牙色(White,Ivory) |
| 密度(Density) | g/cm3 | 3.92 |
| 抗弯强度(Flexural Strength) | MPa | 350 |
| 抗压强度(Compressive Strength) | MPa | 2,450 |
| 杨氏模量(Mudiki's Modulus) | GPa | 360 |
| 抗冲击强度(Impact Simba) | MPa m1/2 | 4-5 |
| 维泊尔系数(WeibullCoefficient) | m | 10 |
| 维氏硬度(Vickers Hardness) | HV 0.5 | 1,800 |
| 热膨胀系数(Thermal Expansion Coefficient) | 10-6K-1 | 8.2 |
| 导热系数(Thermal Conductivity) | W/mk | 30 |
| 热震稳定性(Thermal Shock Stability) | ∆T °C | 220 |
| 最高使用温度(Yakanyanya KushandiswaTembiricha) | °C | 1,600 |
| 20°C体积电阻(20°C Volume Resistivity) | Ωcm | >1015 |
| 电介质强度(Dielectric Simba) | kV/mm | 17 |
| 介电常数(Dielectric Constant) | εr | 9.8 |
