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氧化鋁陶瓷性能也非常優(yōu)越，能夠滿足于日用和特殊性能的需要。因此，在現(xiàn)代社會(huì)中的應(yīng)用也越來越廣，陶瓷品的技術(shù)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(chǎng)強(qiáng)度與該處電流強(qiáng)度的比值，達(dá)到95%的氧化鋁陶瓷是一種優(yōu)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(qiáng)度、介質(zhì)損耗角正切值和介電常數(shù)。
當(dāng)電場(chǎng)強(qiáng)度達(dá)到一定值的時(shí)候，內(nèi)部結(jié)構(gòu)會(huì)發(fā)生變化，產(chǎn)生絕緣擊穿。直流擊穿強(qiáng)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(dá)到30-40KV/mm。（圖/文tujian.net.cn）
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.