Compression behavior of NbC under nonhydrostatic conditions to 57 GPa 13; 13;

Liermann, HP and Singh, AK and Somayazulu, M and Saxena, SK (2007) Compression behavior of NbC under nonhydrostatic conditions to 57 GPa 13; 13;. International Journal of Refractory Metals and Hard Materials, 25 (5-6). pp. 386-391.

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Abstract

The analysis of the diffraction data under nonhydrostatic stress condition created in a diamond anvil cell suggests that the compressive strength of NbC crystallites is at least 24 xB1; 4 GPa at a confining pressure of 57 xB1; 0.5 GPa. When using Al as a pressure transmitting medium in the diamond anvil cell pressure conditions become nearly hydrostatic. The bulk modulus derived from the compression data under quasi-hydrostatic pressure condition gives K0 = 274 xB1; 3 GPa when fixing . This value agrees well with the value obtained from the first-principles numerical calculations

Item Type: Article
Uncontrolled Keywords: Niobium carbide;Compressibility;Elastic properties;Bulk modulus
Subjects: AERONAUTICS > Aeronautics (General)
Depositing User: Users 90 not found.
Date Deposited: 17 Nov 2008
Last Modified: 27 Aug 2012 10:05
URI: http://nal-ir.nal.res.in/id/eprint/4883

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