日韩高清无码电影一区|国产精品人成在线观看|91精品久久久久狠狠爱|伊人久久大杳蕉综合牛牛|国产精品午夜自在在线精品|久久国产72线看观看精品|亚洲最新版AV无码中文字幕|亚洲AⅤ无码日韩AV无码网站

氧化鋁陶瓷件Alumina Ceramics

These parts possess the characteristics of high mechanical strength, high rigidity, withstanding thermal shocks and corrosion, high dielectric strength, high isolativity, a lower loss in high frequency, high thermal conductivity and vacuum tightness. They are widely applied in electrical vacuum devices, I.C. chip setting, power transistors and solid integrated devices. In addtion to electronics, they are used in space technique, machinary, textile industry, chemistry, tectonics, etc.

 

	項目 Items 單位 Unit 條件 Condition 指標值 Value 體密度 Bulk Density g/cm3   >=3.65 抗折強度 Break-Resistivity Mpa   >280 線膨脹系數(shù) Linear Expansion x10-6/K 20-500°C 6.3-7.3   20-800°C 6.3-7.3 相對介電常數(shù) Dielectric Coefficient   1MHz,25°C 9-10   1MHz,500°C 9-10   10GHz,25°C 9-10 介質(zhì)損耗角正切值 Dielectric Loss tge x10-4 1MHz,25°C <4   1MHz,500°C 30-40   10GHz,25°C <10 體電阻率 Resistivity W·cm 25°C >1013   300°C >1010   500°C >108 介電強度 Dielectric Breakdown kV/mm   >20 耐腐蝕性能 Corrosion-Resistivity mg/cm2 1:9HCl <7.5   10%NaOH <0.2