High-Temperature Vapor Phase Lubrication Using Carbonaceous Gases

被引：14

作者：

Argibay, Nicolas ^{[1
]}

Keith, James H. ^{[1
]}

Krick, Brandon A. ^{[1
]}

Hahn, D. W. ^{[1
]}

Bourne, Gerald R. ^{[2
]}

Sawyer, W. Gregory ^{[1
,2
]}

机构：

[1] Univ Florida, Dept Mech & Aerosp Engn, Gainesville, FL 32611 USA

[2] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

来源：

TRIBOLOGY LETTERS | 2010年 / 40卷 / 01期

关键词：

Vapor phase lubrication; High-temperature tribology; Solid lubrication; SOLID LUBRICATION; SLIDING CONTACTS; LOW-FRICTION; CERAMICS;

D O I：

10.1007/s11249-009-9514-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Following the pioneering work of Prof. James Lauer, the ability to provide continuous solid lubrication through vapor phase delivery of carbonaceous gases has been successfully demonstrated on a pin-on-disk contact at the temperatures of 650 A degrees C. Results from tribological experiments under 2 N normal load and 50 mm/s sliding speed showed an over 20x reduction in friction coefficient. The samples were silicon nitride (pin) versus CMSX-4 (disk) and the experiments when run in a nitrogen environment with acetylene admixtures. Two repeat experiments gave average friction coefficients of mu = 0.03 and mu = 0.02. The process was robust and provided low friction for the entire 500 m of sliding. Using focused ion-beam milling, high-resolution transmission electron microscopy, and confocal Raman spectroscopy, the resulting solid lubricant was found to be oriented microcrystalline graphite.

引用

页码：3 / 9

页数：7

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