Tribological performance of SiC and TiB 2 against SiC and Al 2O 3 at low sliding speeds

The friction and wear behaviour of a new developed, pressureless sintered TiB 2 ceramic was studied in comparison to SiC against SiC and Al 2O 3 balls under unlubricated conditions at room temperature. Special attention was paid to the influence of relative humidity on friction and wear results. For...

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Bibliographic Details
Published inWear Vol. 256; no. 7; pp. 695 - 704
Main Authors Wäsche, Rolf, Klaffke, Dieter, Troczynski, Tom
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2004
Subjects
Counter body material
Friction
Relative humidity
Titanium diboride
Wear
Relative humidity
Counter body material
Friction
Wear
Titanium diboride
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Summary:The friction and wear behaviour of a new developed, pressureless sintered TiB 2 ceramic was studied in comparison to SiC against SiC and Al 2O 3 balls under unlubricated conditions at room temperature. Special attention was paid to the influence of relative humidity on friction and wear results. For both ceramics the coefficient of friction against both ball materials decreases with increasing humidity and is higher in tests against alumina than against SiC. The wear rate is affected significantly by humidity and decreases by one order of magnitude for Al 2O 3/SiC system and by 2 orders of magnitude for SiC/SiC system. For TiB 2 wear rates are nearly not affected by humidity against both ball materials and are much smaller than for SiC.
ISSN:0043-1648
1873-2577
DOI:10.1016/S0043-1648(03)00444-7