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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/10065

Title: Sintering mechanisms of attrition milled titanium nano powder
Authors: PANIGRAHI, BB
GODKHINDI, MM
DAS, K
MUKUNDA, PG
DABHADE, VV
RAMAKRISHNAN, P
Keywords: alpha-ti
impurity diffusion
grain-boundaries
self-diffusion
beta-titanium
microstructure
transformation
densification
simulations
ceramics
Issue Date: 2005
Publisher: MATERIALS RESEARCH SOCIETY
Citation: JOURNAL OF MATERIALS RESEARCH, 20(4), 827-836
Abstract: Detailed sintering Studies have been carried out on attrition milled nanocrystalline titanium powder through isothermal dilatometry over a temperature range of 300-1250 degrees C along with microstructural and x-ray diffraction studies. The sintering behavior of attrition milled nanocrystalline titanium appears to be characterized by: (i) very low activation energies, (ii) high shrinkage anisotropy, (iii) very rapid grain growth in the beta range, and (iv) two kinds of densification processes, namely, intra-agglomerate and inter-agglomerate. Analysis of the kinetic data through sintering diagram approach indicates the operation of particle sliding and grain boundary rotation, type of mechanism in addition to the grain-boundary diffusion, and lattice diffusion as the dominant mass transport mechanisms.
URI: http://dx.doi.org/10.1557/JMR.2005.0116
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10065
http://hdl.handle.net/10054/10065
ISSN: 0884-2914
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