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Initial sintering kinetics of attrition milled nanocrystalline titanium powders

DSpace at IIT Bombay

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Title Initial sintering kinetics of attrition milled nanocrystalline titanium powders
 
Creator DABHADE, VV
MOHAN, TRR
RAMAKRISHNAN, P
 
Subject self-diffusion
grain-boundaries
beta-titanium
alpha-ti
densification
al
microstructure
transformation
simulations
behavior
nanocrystalline
titanium
sintering kinetics
activation energy
boundary enhanced diffusion
diffusion coefficients
 
Description In recent years there has been considerable interest in the dominant mass transport mechanisms operating during sintering of nanocrystalline powders. The present investigation deals with these mass transport mechanisms in nanocrystalline titanium powders. Sintering studies have been carried out by dilatometry of the powder compacts using a constant rate of heating (CRH) and employing model equations for the initial sintering portion. The shrinkage values obtained by heating the specimens at a constant rate of heating (CRH) to various temperatures were analyzed using Young and Curlers equations and a model proposed by Johnson and Berrin. Based on the analysis of experimental data, mechanisms are proposed for the initial sintering of nanocrystalline titanium powders. (c) 2006
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-28T10:11:25Z
2011-12-26T12:59:00Z
2011-12-27T05:49:50Z
2011-07-28T10:11:25Z
2011-12-26T12:59:00Z
2011-12-27T05:49:50Z
2007
 
Type Article
 
Identifier MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 452(), 386-394
0921-5093
http://dx.doi.org/10.1016/j.msea.2006.10.097
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7374
http://hdl.handle.net/10054/7374
 
Language en