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氧化鋁陶瓷性能也非常優越，能夠滿足于日用和特殊性能的需要。因此，在現代社會中的應用也越來越廣，陶瓷品的技術也日漸成熟。體積電阻率指的是試樣體積電流方向的直流電場強度與該處電流強度的比值，達到95%的氧化鋁陶瓷是一種優良的電子絕緣材料，體積電阻率很高。電性能主要是指體積電阻率、直接擊穿強度、介質損耗角正切值和介電常數。
當電場強度達到一定值的時候，內部結構會發生變化，產生絕緣擊穿。直流擊穿強度是擊穿電壓值與試樣的平均厚度的比值，一般我們可以達到30-40KV/mm。（圖/文www.xahjbz.com）
中譯英：
The properties of the alumina ceramics is very advantageous, able to meet the daily needs and special properties of. Therefore, in the modern society is more and more widely applied in ceramic products, the technology has become more mature. Volume resistivity refers to the volume of sample the current direction of DC electric field strength and the current intensity ratios, reached 95% of the alumina ceramics is a kind of excellent electrical insulation materials, high volume resistivity. Electrical properties are mainly refers to the volume resistivity, direct breakdown field strength, dielectric loss tangent and dielectric constant.
When the electric field intensity reaches a certain value, the internal structure will change, resulting in insulation breakdown. DC breakdown strength is breakdown voltage value and the average thickness ratio, in general we can reach 30-40KV/mm.