Recrystallization Textures during Laser-Assisted Machining of Zirconia Ceramics

By locally heating ceramic materials with a high energy laser it is possible to machine them with similar deformation response and surface finish to that typically accomplished in metals. The high temperatures of laser-assisted machining (LAM) enable chip formation and tailoring of the surfaces that...

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Veröffentlicht in:Materials science forum 2002-01, Vol.408-412 (2), p.1669-1674
Hauptverfasser: Bowman, Keith J., Shin, Yung C., Pfefferkorn, Frank E.
Format: Artikel
Sprache:eng
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Zusammenfassung:By locally heating ceramic materials with a high energy laser it is possible to machine them with similar deformation response and surface finish to that typically accomplished in metals. The high temperatures of laser-assisted machining (LAM) enable chip formation and tailoring of the surfaces that cannot be accomplished in grinding processes. The LAM conditions can produce a wide range of effects, including residual stresses and surface texturing. For sufficiently high temperatures and applied loads it is possible to produce surface texturing through deformation that is apparently a combination of slip-based deformation and recrystallization. Texture assessment using an area detector will be used to demonstrate the evidence for this unique route to producing materials with modified surfaces.
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.408-412.1669