氧化铝氧化锆陶瓷的性能参数氧化铝陶瓷(AL2O3)氧化锆陶瓷(Zr02)性能单位≥95≥99≥99.5≥99.8ZTAYIZ体积密度g/cm33.73.8-3.853.853.853.8-4.66硬度Mpa≥8688888886-8888-90抗弯强度HRA≥300350400400172-450900最高使用温度℃15001500150015001400-15001500线膨胀系数×10-6/℃7.58.28.28.2介电常数εr(20℃,1MHz)9.09.29.29.2介质损耗tanδ×10-4,1MHz3222体积电阻率Ω•cm(20℃)101310141014101410131014击穿强度KV/mm,DC≥20202020耐酸性mg/cm2≤0.70.70.70.7耐碱性mg/cm2≤0.20.10.10.1耐磨性g/cm2≤0.20.10.10.1抗压强度Mpa≥25002500250028002300-29002500抗折强度Mpa≥200350350350弹性模量Gpa300350350350泊松比(横向变形系数)0.20.220.220.22导热系数W/m•K(20℃)2025252513-2722