On the low temperature heat capacities of Ti2AlN and Ti2Al(N0.5Co0.5)

被引：42

作者：

Drulis, Monika K.

Drulis, H.

Hackemer, A. E.

Ganguly, A.

El-Raghy, T.

Barsoum, M. W.

机构：

[1] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw 2, Poland

[2] Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

[3] 3 ONE 2, Voorhees, NJ 08043 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 433卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

ceramics; transition metal ternary carbides; heat capacity;

D O I：

10.1016/j.jallcom.2006.06.092

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, we report on the heat capacities, C, of bulk polycrystalline samples of Ti(2)AIN and solid solutions of Ti2Al(N0.5C0.5) in the 3-260 K temperature range. In spite of their different chemical compositions, the temperature dependencies of their Cp's are quite similar. The lattice contributions to C, are analysed using the Debye and Einstein model approximations. The Debye temperatures for both compounds are reasonably high and fall in the 600-700 K range. At temperatures higher than 175 K, the C-p of the Ti(2)AIN(0.5)C(0.5) sample is slightly larger than that of the end-members, Ti(2)AIN and Ti(2)AIC. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：59 / 62

页数：4

共 26 条

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