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Nd-YAG Laser Nitriding of t-Zirconia

DSpace at IIT Bombay

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Field Value
 
Title Nd-YAG Laser Nitriding of t-Zirconia
 
Creator KATHURIA, YP
 
Subject laser
raman microscopy
t-zro(2)
zrn
 
Description Surface nitriding of yttria (Y(2)O(3)) stabilized tetragonal zirconia (t-ZrO(2)) has been performed using the pulsed Nd-YAG laser irradiation in the nitrogen atmosphere. The results show modification of the crystallographic structure between the original t-ZrO(2) and the treated one. Nitrogen atoms enter in ZrO(2) substituting oxygen atoms in the network. X-Ray diffraction and Raman spectra show an efficient transformation of the t-ZrO(2) at the surface that exhibits typical yellow-gold color of ZrN with high hardness and wear resistance. The hardness measured with Vickers indenter yields a high value of 1410 HV. Nitriding is accompanied by the formation of a few micron thick gradient layer of ZrN structure on the top and a partial transformation of t-ZrO(2) into cubic zirconia (c-ZrO(2)) beneath deep in the bulk due to nitrogen concentration gradient.
 
Publisher WILEY-V C H VERLAG GMBH
 
Date 2011-09-01T18:37:14Z
2011-12-26T12:59:45Z
2011-12-27T05:52:34Z
2011-09-01T18:37:14Z
2011-12-26T12:59:45Z
2011-12-27T05:52:34Z
2007
 
Type Article
 
Identifier PLASMA PROCESSES AND POLYMERS, 4(), S707-S710
1612-8850
http://dx.doi.org/10.1002/ppap.200731802
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12842
http://hdl.handle.net/10054/12842
 
Language en