95%氧化铝陶瓷烧结镍工艺探索  

Welding of Mo-Mn Metallized 95% Alumina Parts Coated with Sintered-Ni:An Experimental Study

作　　者：刘林 方有维[1] 肖东梅[1] 胡小华 赵建东[1] Liu Lin;Fang Youwei;Xiao Dongmei;Hu Xiaohua;Zhao Jiandong(Insititute of Electrics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院电子学研究所,北京100190

出　　处：《真空科学与技术学报》2019年第9期806-810,共5页Chinese Journal of Vacuum Science and Technology

摘　　要：通过对不同Mo-Mn金属化配方体系的烧结镍工艺探索,发现烧结镍工艺适用于Mo含量高的Mo-Mn金属化配方体系。当Mo质量分数为70%时,镍粉粒度d0.5为1.872μm,镍层厚度为6~12μm时,封接件断面显示镍层连续、致密,陶瓷标准件的抗拉强度为116 MPa,陶瓷金属封接件的环境性能测试结果符合行业标准要求。We addressed the deposition of sintered Ni-layer by screen printing on substrate of Mo-Mn metallized 95%alumina ceramic.The influence of the recipe of Mo-Mn metallized coating,particle-size and Ni-layer thickness on the microstructures and tensile-strength of welded seam was investigated with scanning electron microscopy,energy dispersive spectroscopy and tensile strength measurement for optimization of welding conditions.The results show that the Mo-content,grain-size and Ni-layer thickness all had a major impact.Under the optimized conditions:a Mo mass fraction of 70%,a Ni-particle size of 1.872μm and a sintered Ni-layer thickness in 6~12μm rang,high quality welded seam formed with continuous,dense and compact Ni-layer.The tensile strength of the welded standard ceramic tensile parts was estimated to be 116 MPa,meeting well the requirements of industry standards.

关 键 词：陶瓷金属化 烧结镍 抗拉强度 丝网印刷 

分 类 号：TQ174.758.22[化学工程—陶瓷工业]