最近,日本住友电气工业公司研制成功能十分方便的用电火花加工的氮化硅陶瓷新材料。氯化硅陶瓷有着耐高温,硬度高,耐腐蚀,抗热震等优良性能。其精细陶瓷材料将广泛应用于机械,发动机、航空、宇宙等领域。目前,它已成为世界各国加紧研究、剧烈竞争的目标之一。氮化硅陶瓷尽管有着各种优良特性,但存在机械加工性差、加工成本高等关键问题。过去加工氮化硅陶瓷是采用价格昂贵的金刚 Recently, Japan Sumitomo Electric Industries developed a very easy to use electric spark machining of silicon nitride ceramic new materials. Silicon chloride ceramic has high temperature, high hardness, corrosion resistance, thermal shock and other excellent performance. Its fine ceramic materials will be widely used in machinery, engine, aviation, space and other fields. At present, it has become one of the goals of intensifying research and vigorous competition in all countries in the world. Silicon nitride ceramics, despite their various excellent properties, have the key problems of poor machinability and high processing costs. In the past processing of silicon nitride ceramics is the use of expensive diamond