绝缘搪瓷金属基板的研究  

The Study on Insulting Porcelain- Coated Metal Substrates

作　　者：王海波[1] 王钢[1] 

机构地区：[1]东华大学材料科学与工程学院,上海200051

出　　处：《中国材料科技与设备》2006年第2期74-76,81,共4页Chinese Materials Science Technology & Equipment

摘　　要：本文介绍了电子绝缘瓷釉的发展状况，测定了瓷釉的烧结温度、热膨胀系数、软化点、瓷层厚度、粒度分布等工艺性质以及耐击穿电压、体积电阻率、介电性能等电学性质；对瓷釉颗粒和瓷层进行了SEM分析，对瓷釉进行了TG—DTA和X衍射分析，明确了瓷釉中的析晶温度和结晶相；对比了绝缘瓷釉和ECA瓷釉的电性能；讨论了烧结温度和时间对瓷层形貌。温度和频率对介电性能的影响。The present paper introduces the developments on porcelain enamel for electrical application. The properties of porcelain enamel are tested, such as sintering temperature, thermal coefficient, softening point, the thickness of coatings, grain distributions, breakdown voltage, bulk resistance, dielectric properties. The grains of porcelain enamel and coatings are analyzed by scanning electric microscope. The porcelain enamel is analyzed by TG - DTA and X - ray methods to find devitrifying temperature and determine crystal phase. The electric properties of insulting enamel and ECA enamel are compared. Many influences are discussed, including sintering temperature and time on coating, temperature and frequency on dielectric properties.

关 键 词：瓷釉 体积电阻率 击穿电压 

分 类 号：TQ173.612[化学工程—搪瓷工业] TN41[化学工程—硅酸盐工业]