期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 505, 期 1, 页码 328-331出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.06.066
关键词
MAX phases; High pressure; DAC; Ti2GaN; Cr2GaC; Synchrotron radiations
资金
- National Science Foundation [DMR 0231291]
- Division of Materials Research, NSF [DMR 0503711]
- NIH/NIGMS [DMR 0225180]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0503711, 0225180] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0231291] Funding Source: National Science Foundation
Using a synchrotron radiation source and a diamond anvil cell, we measured the pressure dependencies of the lattice parameters of two Ga-containing polycrystalline MAX phases: Ti2GaN and Cr2GaC. The bulk moduli were calculated to be 189 +/- 4 and 188 +/- 5 GPa, respectively. Up to a pressure of about 50 GPa, no phase transformations were observed. Ti2GaN compresses more easily along the c-axis, while Cr2GaC compresses equally in both directions. (C) 2010 Elsevier B.V. All rights reserved.
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