Title of article
Transmission electron microscopy study of precipitates in a NiAl–TiB2 composite
Author/Authors
Shen، نويسنده , , G.J. and Cao، نويسنده , , G.H and Liu، نويسنده , , Z.G.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
4
From page
39
To page
42
Abstract
A TiB2 particle-reinforced NiAl alloy composite was fabricated by hot-pressing aided exothermic synthesis. The microstructures of the composite were investigated by transmission electron microscopy (TEM). The experimental results show that a fcc phase with lattice constant a=1.05 nm precipitated in the TiB2/NiAl composite. TEM energy dispersive X-ray (EDX) spectroscopy (Philips, CM200 FEG, spot size: 5 nm) analysis on this fcc phase indicated that it contains the elements Ni, Al and B with near atomic ratio 20:3:6, thus, this fcc phase is a boride, Ni20Al3B6.
Keywords
Microstructures , Intermetallic NiAl , Transmission electron microscopy
Journal title
Materials Characterization
Serial Year
2001
Journal title
Materials Characterization
Record number
2265889
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