Excimer laser surface processing of ceramics: Process and properties
- Los Alamos National Lab., NM (United States)
Surface modification of ceramics has proven to be of benefit in a number of applications. Excimer laser light provides a rapid and efficient means for surface alloying and modification of ceramic materials. The laser pulse can melt the surface of the ceramic as well as a deposited metal layer. This results in diffusional mixing in the liquid state, which is followed by rapid resolidification. The high temperatures involved can overcome kinetic barriers to mixing found in ion beam experiments. Tribological measurements on surface treated materials show reduced friction and increased surface toughness. Increased fracture toughness in laser surface alloyed ceramics has also been observed. Excimer laser processes therefore may enable the use the ceramic materials in applications for which they are not now suitable.
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6301856
- Journal Information:
- Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 76:2; ISSN 0002-7820; ISSN JACTAW
- Country of Publication:
- United States
- Language:
- English
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Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
BACKSCATTERING
CERAMICS
COHERENT SCATTERING
DATA
DIFFRACTION
EXCIMER LASERS
EXPERIMENTAL DATA
GAS LASERS
INFORMATION
ION IMPLANTATION
KRYPTON FLUORIDE LASERS
LASER BEAM MACHINING
LASERS
MACHINING
METALLURGICAL EFFECTS
NUMERICAL DATA
PROCESSING
PULSE TECHNIQUES
SCATTERING
SPECTROSCOPY
SURFACE PROPERTIES
TRIBOLOGY
X-RAY DIFFRACTION