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Low temperature heat capacities of Ti3Al1.1C1.8, Ti4AlN3, and Ti3SiC2
Journal article   Open access   Peer reviewed

Low temperature heat capacities of Ti3Al1.1C1.8, Ti4AlN3, and Ti3SiC2

J C Ho, H H Hamdeh, M W Barsoum and T El-Raghy
Journal of applied physics, v 86(7), pp 3609-3611
01 Oct 1999
url
http://hdl.handle.net/10057/4075View

Abstract

Physical Sciences Physics Physics, Applied Science & Technology
For the binary Ti-Al system, an ordering transformation in Ti3Al has been shown to result in a significant lowering of the electronic heat-capacity coefficient, gamma, by removing electrons from conducting states. When gamma is normalized to a per Ti atom basis, the same tendency is found in low temperature calorimetric studies of the conducting ternary carbides Ti3Al1.1C1.8, Ti4AlN3, and Ti3SiC2 reported herein. As a consequence of C- or N-induced covalent-like bond formation, the Debye temperatures in these ternaries are in excess of 700 K. (C) 1999 American Institute of Physics. [S0021-8979(99)00819-1].

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Domestic collaboration
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Physics, Applied
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