不同粘结剂制备的铝硅氮化硼复合粉末材料及封严涂层性能研究  

Property of AlSi/hBN Composite Powder and Plasma Sprayed Sealing Coating with Different Binders

作　　者：程旭莹 章德铭[1,2] 刘建明[1,2] 沈婕[1,2] 鲁秋源 刘通[1,2] 

机构地区：[1]北京矿冶研究总院,北京100160 [2]北京市工业部件表面强化与修复工程技术研究中心,北京102206

出　　处：《热喷涂技术》2015年第1期56-61,共6页Thermal Spray Technology

基　　金：国家高技术研究发展计划(863计划)课题(2012AA03A512)

摘　　要：本文对比分析了三种不同粘结剂制备的铝硅氮化硼复合粉末材料及封严涂层的组织性能,结果表明:以B3为粘结剂时,铝硅氮化硼复合粉末材料的形貌和性能较优,等离子喷涂过程的沉积效率最高,由此制备的封严涂层组织均匀,硬度和结合强度匹配最好,在450℃下抗热震性能和热稳定性能良好。Three kinds of A1Si/hBN composite powder prepared by different binders and microstructures and properties of the seal coatings were investigated in this article. The results show that in case of B3 as binder, the AISi/hBN composite powder has more excellent morphology and properties as well as the highest spray deposition efficiency so that the seal coating exhibits uniform microstructure, the best match of hardness and strength, and favorable thermal shock resistance and thermal stability at 450 ℃, very appropriate for the use as moderate temperature seal coating.

关 键 词：粘结剂 铝硅氮化硼 封严涂层 等离子喷涂 组织性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]