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.
作者
刘林
方有维
肖东梅
胡小华
赵建东
Liu Lin;Fang Youwei;Xiao Dongmei;Hu Xiaohua;Zhao Jiandong(Insititute of Electrics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《真空科学与技术学报》
EI
CAS
CSCD
北大核心
2019年第9期806-810,共5页
Chinese Journal of Vacuum Science and Technology
关键词
陶瓷金属化
烧结镍
抗拉强度
丝网印刷
Ceramic metallization
Sintered nickel
Tensile strength
Screen printing
