Tribology and mechanical properties of excimer laser-processed Ti--Si{sub 3}N{sub 4} surfaces

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Journal of Materials Research

DOI:https://doi.org/10.1557/JMR.1995.1857· OSTI ID:115800

Jervis, T R ^[1]; Hirvonen, J ^[2]; Nastasi, M; Kung, H ^[1]

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1. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. VTT Manufacturing Technology, FIN-02044 VTT (Finland)

Titanium films were mixed, using excimer laser radiation, into the surface of bulk Si{sub 3}N{sub 4} materials. The tribological and mechanical properties of these surfaces were then evaluated using pin-on-disk and nanoindenter techniques, respectively. Reduced friction and a change in the wear mechanism that resulted in a more benign failure mode were observed. These results are interpreted as resulting from the establishment of a transfer film, changes in the compliance of the surface which reduces instantaneous stresses in the surface, and toughening of the surface, all results of the laser process.

• Research Organization: Los Alamos National Laboratory
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 115800
• Journal Information: Journal of Materials Research, Journal Name: Journal of Materials Research Journal Issue: 8 Vol. 10; ISSN JMREEE; ISSN 0884-2914
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
FILMS
FRICTION
LASER RADIATION
MECHANICAL PROPERTIES
MIXTURES
SILICON NITRIDES
TITANIUM
TRIBOLOGY
WEAR