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Dilatometric sintering study of titanium-titanium nitride nano/nanocomposite powders

DSpace at IIT Bombay

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Title Dilatometric sintering study of titanium-titanium nitride nano/nanocomposite powders
 
Creator DABHADE, VV
MOHAN, TRR
RAMAKRISHNAN, P
 
Subject mechanical-properties
nanocomposites
particles
composite
microstructure
densification
ceramics
nano/nanocomposite
dilatometry
sintering
activation energy
grain growth
 
Description The sintering behaviour of titanium-titanium nitride nano/nanocomposite powders has been investigated by dilatometry. The nanosized titanium powders (40 nm) were produced by the attrition milling of micron sized titanium powders (12 mu m) in Ar atmosphere while the nanosized titanium nitride powders (50 nm) were as procured. Two compositions of the nano/nanocomposite powders, i.e. Ti-8TiN and Ti-15TiN (wt-%) were produced by physical mixing and ultrasonification. Dilatometry was carried out at a constant rate of 10 K min(-1) heating to various temperatures in the range of 450-1250 degrees C followed by holding for 1 h. The effect of nanoTiN reinforcement on the sintering onset temperature, linear shrinkage, shrinkage rate, activation energy for sintering, microstructure and grain growth has been reported and discussed.
 
Publisher MANEY PUBLISHING
 
Date 2011-08-18T04:10:24Z
2011-12-26T12:55:34Z
2011-12-27T05:41:12Z
2011-08-18T04:10:24Z
2011-12-26T12:55:34Z
2011-12-27T05:41:12Z
2007
 
Type Article
 
Identifier POWDER METALLURGY, 50(1), 33-39
0032-5899
http://dx.doi.org/10.1179/174329007X186390
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9887
http://hdl.handle.net/10054/9887
 
Language en