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Formation Mechanisms of Ti3 SnC2 Nanolaminate Carbide Using Fe as Additive.
- Source :
- Journal of the American Ceramic Society; Oct2013, Vol. 96 Issue 10, p3239-3242, 4p, 1 Black and White Photograph, 4 Graphs
- Publication Year :
- 2013
-
Abstract
- Reactive sintering of 3 Ti: Sn:2 C and 3Ti:Sn:2C:0.6Fe powder mixtures is studied in the temperature range 510°C-1200°C under argon. It is demonstrated that the recently discovered Ti<subscript>3</subscript> SnC<subscript>2</subscript> phase is formed, provided that Fe is added to a 3 Ti: Sn:2 C reactant mixture within the synthesis conditions used. Using dilatometric and X-Ray diffraction analyses, the formation mechanism of Ti<subscript>3</subscript> SnC<subscript>2</subscript> is discussed. Results show that at low temperature (about 510°C), tin is consumed to form Fe<subscript> x</subscript> Sn<subscript> y</subscript> intermetallics. At high temperature (about 1060°C), tin is newly available to form Ti<subscript>3</subscript> SnC<subscript>2</subscript> due to the melting of Fe<subscript> x</subscript> Sn<subscript> y</subscript>. Then, the intermediate phases, TiC and Ti<subscript>2</subscript> SnC, and/or Ti<subscript>5</subscript> Sn<subscript>3</subscript>, TiC, C, and Ti are dissolved in the ( Fe + Sn) liquid phase and Ti<subscript>3</subscript> SnC<subscript>2</subscript> very likely precipitate from the melt. The second part of the study deals with the optimization of the Fe content in the initial 3Ti:Sn:2C reactant powder mixture to synthesize samples with larger Ti<subscript>3</subscript> SnC<subscript>2</subscript> content by hot isostatic pressing. [ABSTRACT FROM AUTHOR]
- Subjects :
- SINTERING
CERAMICS
TRANSITION metals
X-ray diffraction
LIQUID phase epitaxy
METALS
Subjects
Details
- Language :
- English
- ISSN :
- 00027820
- Volume :
- 96
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Journal of the American Ceramic Society
- Publication Type :
- Academic Journal
- Accession number :
- 90673638
- Full Text :
- https://doi.org/10.1111/jace.12427