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Tribology of Mechanical Systems: A Guide to Present and Future Technologies

By
Jože Vižintin
Jože Vižintin
Center for Tribology and Technical Diagnostics,
University of Ljubljana
,
Slovenia
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Mitjan Kalin
Mitjan Kalin
Center for Tribology and Technical Diagnostics,
University of Ljubljana
,
Slovenia
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Kuniaki Dohda
Kuniaki Dohda
Gifu University
,
Japan
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Said Jahanmir
Said Jahanmir
MiTiHeart Corporation
,
USA
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ISBN-10:
0791802094
No. of Pages:
342
Publisher:
ASME Press
Publication date:
2004

Advanced engineering ceramics such as silicon nitride (Si3N4), silicon carbide (SiC), alumina (Al2O3) and zirconia (ZrO2), which are made by modern fine manufacturing technology, have large hardness (Hv > 15 GPa) and acceptable toughness (KIC > 4 MPam0.5) properties that are useful for practical tribo-elements.

Although the toughness of these ceramics is not yet large enough to ensure reliable operation of machine elements under macroscopic tensile stress, it is large enough to ensure that of the tribo-elements, which work mainly under macroscopically compressive contact stress.

Ceramic tribo-elements show excellent performance from the viewpoint of low friction and/or low wear during operation at high speed, high temperature, and in corrosive or erosive environment.

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