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Journal of Materials Science

, Volume 41, Issue 14, pp 4649–4653 | Cite as

Instability of solid–liquid interface in transitional metal–carbide systems

  • Han-Jung Kwon
  • Shinhoo KangEmail author
Article

Abstract

The instability of solid–liquid interface (ISLI) during the liquid-phase sintering was studied using carbide–Ni composites. Of the various transitional metal carbides TiC of 4th period is the only carbide that exhibits a strong ISLI with negative curvatures in molten Ni. No ISLI was observed for other carbides in the 5th and 6th periods. The origin of ISLI is strain developed at the interface between the carbides and the newly formed solid solutions. The difference in the size of the atoms involved can be used to predict the formation of a carbide–Ni solid solution when the Hume-Rothery rules are applied. Aside from the size factor, other factors in the rules are not effective in predicting this phenomenon.

Keywords

Carbide Solid Solution Negative Curvature Atomic Size Size Factor 

Notes

Acknowledgements

This research was sponsored by KISTEP (Korean Institute of S&T Evaluation and Planning) research fund through New Frontier Projects of the 21st Century (2002) via KIMM (Korean Institute of Machine and Machinery).

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringSeoul National UniversitySeoulKorea

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