Tribological properties of TiN/Ag nanocomposite coatings

被引：68
作者：
Koestenbauer, Harald [1 ,2 ]
Fontalvo, Gerardo A. [1 ]
Mitterer, Christian [1 ]
Keckes, Jozef [2 ]
机构：
[1] Univ Min & Met Leoben, Dept Phys Met & Mat Testing, A-8700 Leoben, Austria
[2] Univ Min & Met Leoben, Dept Mat Phys, A-8700 Leoben, Austria
来源：
TRIBOLOGY LETTERS | 2008年 / 30卷 / 01期
基金：
奥地利科学基金会;
关键词：
nitrides; silver; self lubricating composites; wear-resistant coatings;
D O I：
10.1007/s11249-008-9312-7
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Morphology, structure, and tribological behavior of magnetron co-sputtered TiN/Ag nanocomposite coatings deposited at 150 C with an Ag content in the range of 7-45 at.% were characterized. The coatings show a columnar structure with embedded Ag crystallites of 3-50 nm in diameter, where the columns are characterized by a layered structure with Ag-poor and Ag-rich layers. These layers originate from sample rotation during deposition, where the layer thickness increases with increasing Ag content. These Ag layers become continuous over a critical Ag content. At room temperature the friction coefficient is determined by the film structure, whereas friction and wear at high temperature depend on segregation of Ag to the surface.
引用
收藏
页码：53 / 60
页数：8
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