Self-Propagating High-Temperature Synthesis of Ti3SiC2: I, Ultra-High-Speed Neutron Diffraction Study of the Reaction Mechanism

In situ neutron diffraction at 0.9 s time resolution was used to reveal the reaction mechanism during the self‐propagating high‐temperature synthesis (SHS) of Ti3SiC2 from furnace‐ignited stoichiometric 3Ti + SiC + C mixtures. The diffraction patterns indicate that the SHS proceeded in five stages:...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2002-10, Vol.85 (10), p.2417-2424
Main Authors: Riley, Daniel P., Kisi, Erich H., Hansen, Thomas C., Hewat, Alan W.
Format: Article
Language:English
Subjects:
Chemistry
Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)
Exact sciences and technology
high temperature
Inorganic chemistry and origins of life
Preparations and properties
synthesis
titanium
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Summary:In situ neutron diffraction at 0.9 s time resolution was used to reveal the reaction mechanism during the self‐propagating high‐temperature synthesis (SHS) of Ti3SiC2 from furnace‐ignited stoichiometric 3Ti + SiC + C mixtures. The diffraction patterns indicate that the SHS proceeded in five stages: (i) preheating of the reactants, (ii) the α→β phase transformation in Ti, (iii) preignition reactions, (iv) the formation of a single solid intermediate phase in
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.2002.tb00474.x