名称Description |
堇青石陶瓷 |
化学成份Chemical composition 2MgO 2Al 2 O 3 5SiO 2 (%) |
≥ 90.2 |
物质特性 Material characteristics |
体积密度volume density (g/cm 3 ) |
≥ 2.0 |
吸水率water absorption (%) |
≤ 1 |
烧结温度sintering temperature (℃) |
1350 |
维氏硬度Vickers Hardness (HV) |
800-1600 |
物理性质physical property |
耐压强度Compressive Strength (MPa) |
280~500 |
抗折强度(抗弯强度)Flexual Strength (MPa) |
50~60 |
弹性模量Modulus of Elasticity (GPa) |
50 |
热力特性 thermodynamic property |
最高使用温度Maximum Use Temperature (℃) |
1350 |
热膨胀系数 Thermal Expansion Coefficient×10 -6 (20 ~ 100 ℃ ) |
1.1~1.8 |
耐热冲击力Heat-resistant wallop T(℃) |
260-350 |
导热系数 Thermal Conductivity kJ/(m 2 ·h· ℃ )(0 ~ 100 ℃ ) |
3.35~5.02 |
热震稳定性Thermal Shock Resistance (△T℃) |
360 |
电气特性 electrical characteristic |
20℃体积电阻Volume Resistivity at 20℃(Ω×cm) |
≥10 13 |
(400 ~ 600 ℃ ) 绝缘强度 Dielectric Strength (MΩ·cm) |
2.3~5.6 |
绝缘破坏强度Dielectric Strength (KV/mm) |
10 |
介质损耗角正切值dielectric loss factor tgδ 50Hz |
200×10 -4 |
介电常数Dielectric Constant100MHz(E) |
6 |