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Compression of Zr2InC to 52 GPa.
- Source :
-
Applied Physics Letters . 8/30/2004, Vol. 85 Issue 9, p1514-1516. 3p. 1 Chart, 2 Graphs. - Publication Year :
- 2004
-
Abstract
- Using a synchrotron-radiation source and a diamond-anvil cell, we measured the pressure dependence of the lattice parameters of a polycrystalline Zr2InC sample. Up to a pressure of 52 GPa, no phase transformations were observed. As observed in Ti3SiC2 and Ti3Si0.5Ge0.5C2, the compressibility of Zr2InC along the c axis was greater than along the a axis. The bulk modulus is 127±5 GPa, with a pressure derivative of 4.25±0.3; the former is in excellent agreement with our ab initio calculations (130.9 GPa). The a (3.367 Å) and c (15.100 Å) parameters from the ab initio calculations are also slightly larger than those measured here, viz., 3.35 and 14.91 Å. Surprisingly, a hysteresis was observed in the a-lattice parameters; they were higher upon unloading than loading. The reason for this hysteresis is not clear at this time. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 85
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 14258809
- Full Text :
- https://doi.org/10.1063/1.1784516