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Viscous flow during sintering of attrition milled nanocrystalline titanium powders

DSpace at IIT Bombay

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Field Value
 
Title Viscous flow during sintering of attrition milled nanocrystalline titanium powders
 
Creator DABHADE, VV
MOHAN, TRR
RAMAKRISHNAN, P
 
Subject amorphous materials
nanostructures
surfaces
 
Description Nanocrystalline powders are expected to exhibit viscous flow during sintering due to presence of substantial amount of quasi-amorphous layers at the grain boundaries. The present investigation attempts to determine the contribution of viscous flow during sintering of nanocrystalline titanium powders. Model equations originally suggested by Frenkel are applied on the shrinkage data to determine the activation energy for viscous flow, frequency factor and the coefficient of viscosity. Nanocrystalline titanium powders were found to exhibit lower activation energy for viscous flow, higher frequency factor and higher coefficient of viscosity as compared to micron sized titanium powders. (C) 2006
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-27T03:14:57Z
2011-12-26T12:57:42Z
2011-12-27T05:44:51Z
2011-08-27T03:14:57Z
2011-12-26T12:57:42Z
2011-12-27T05:44:51Z
2007
 
Type Article
 
Identifier MATERIALS RESEARCH BULLETIN, 42(7), 1262-1268
0025-5408
http://dx.doi.org/10.1016/j.materresbull.2006.10.008
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11525
http://hdl.handle.net/10054/11525
 
Language en