Record Details

Oxygen impurity in self-propagating high-temperature synthesis of NiAl

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Oxygen impurity in self-propagating high-temperature synthesis of NiAl
 
Creator BISWAS, A
ROY, SK
SINGH, JB
MADANGOPAL, K
PRABHU, N
 
Subject combustion synthesis
titanium carbide
al
 
Description The technique of Self-propagating High-temperature Synthesis (SHS) was used to prepare NiAl from compacts using elemental powder mixtures in stoichiometric amounts under vacuum and argon atmosphere. Considerable changes in the oxygen contents of the specimen before and after the SH-synthesis were not observed. But, unusual occurrence of an impurity phase was noticed in the product as second phase precipitate. The sparsely distributed precipitates could be detected only in the Transmission Electron Microscope and was characterized to be an oxide of aluminium (alpha-Al2O3) containing nickel oxide (NiO), whose solubility in alpha-Al2O3 at room temperature has not been reported earlier. The occurrence of this phase could be traced to the oxygen on the surface of the reactant particles. (C) 2002 Kluwer Academic Publishers.
 
Publisher KLUWER ACADEMIC PUBL
 
Date 2011-08-17T07:26:57Z
2011-12-26T12:55:26Z
2011-12-27T05:40:00Z
2011-08-17T07:26:57Z
2011-12-26T12:55:26Z
2011-12-27T05:40:00Z
2002
 
Type Article
 
Identifier JOURNAL OF MATERIALS SCIENCE, 37(6), 1189-1195
0022-2461
http://dx.doi.org/10.1023/A:1014371606760
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9795
http://hdl.handle.net/10054/9795
 
Language en