摘要
以添加了少量氧化镧的团聚纳米Al2O3-13%TiO2粉末为原料,利用等离子喷涂技术制备了纳米陶瓷涂层。在MMS-1G型高速摩擦磨损试验机进行了摩擦磨损试验,利用扫描电镜和能谱仪对磨损表面进行了表征。结果表明:涂层组织呈现出典型的层状结构特征,界面结合良好。在高速摩擦磨损试验中,随着载荷的增加,涂层摩擦因数下降,而涂层微裂纹扩展引起涂层剥落,导致磨损率升高。
The nano-ceramic coating was prepared by plasma spraying with nano Al2O3-13 % TiO2 powders as raw material added a small amount of La2O3 The friction properties were tested on the MMS-1G high-speed friction and wear tester, and the morphology was observed after wear by scanning electron microscopy. The results showed that the coatings exhibit typical layered structure and have a good bonding interface. In the high-speed friction and wear test, the coating friction coefficient is decreases with the increase of the load, and the expansion of micro-crack causes the coating to peel off, leading the wear rate to increase.
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2013年第2期35-39,共5页
China Surface Engineering
基金
国家自然科学基金(51175149)
河南省教育厅自然科学研究(2011A430012)
关键词
等离子喷涂
纳米涂层
摩擦因数
磨损率
plasma spraying
nano coating
friction coefficient
wear rate
