南京航空航天大学学报2012，Vol.44Issue(5)：762-768,7.
Al2O3陶瓷表面机械合金化制备铜涂层研究
Investigation of Coating of Alumina Ceramic Surface by Metallic Cu Through Mechanical Alloying
摘要
Abstract
Copper coating is obtained on the alumina ceramic surface through mechanical alloying. The microstructures of the metal coating with different milling time are studied and the formation process of surface metallization is discussed. It is found that based on ball-to-substrate collisions and frictions, Cu particles firstly adher to the surface of alumina ceramic and fill the pits on the surface, and through a relatively long time process of cold welding, Cu particles gradually cover the surface of ceramic and form coating layer. The fact that almost no diffusion caused between metal coating layer and the ceramic substrate is confirmed in this study, and the coatings and substrate are mechanically bonded. It is revealed that a proper increasing of milling time can improve the thickness and densification level of the deposited coatings. Scratch test confirms the relatively good bonding between coatings and the ceramic substrate, and almost no coatings are peeled off after scratch test.关键词
机械合金化/表面金属化/Al2O3陶瓷/铜涂层/微观组织Key words
mechanical alloying/ surface metallization/ alumina ceramic/ copper coating layer/ micro morphology分类
矿业与冶金引用本文复制引用
沈以赴,李永灿,陈成,冯晓梅..Al2O3陶瓷表面机械合金化制备铜涂层研究[J].南京航空航天大学学报,2012,44(5):762-768,7.基金项目
国家自然科学基金(51075205)资助项目. （51075205）
