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Identification of an Al–Ni–O precipitate in combustion‐synthesized NiAl
Author(s) -
Biswas A.,
Singh J. B.,
Roy S. K.,
Banerjee S.
Publication year - 2000
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889800008505
Subject(s) - nial , transmission electron microscopy , materials science , crystallography , solid solution , electron diffraction , crystal structure , solubility , energy dispersive x ray spectroscopy , non blocking i/o , diffraction , combustion , analytical chemistry (journal) , melting point , chemistry , scanning electron microscope , intermetallic , metallurgy , nanotechnology , chromatography , organic chemistry , physics , alloy , composite material , optics , catalysis
The complete identity of a second‐phase precipitate detected by transmission electron microscopy in combustion‐synthesized NiAl was established. The crystal structure, including the point group, the space group and the lattice parameters, was determined by convergent and selected‐area electron diffraction techniques. Energy dispersive X‐ray spectroscopy was used for the determination of the chemical composition. Analysis established the phase to be the solid solution of NiO in Al 2 O 3 and presented evidence of the hitherto unreported room‐temperature solubility.