Effect of High Pressure on the Order-Disorder Transition in CuPt
- 1 March 1981
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 20 (3) , 623-627
- https://doi.org/10.1143/jjap.20.623
Abstract
The order-disorder transition temperature T c of the alloy CuPt has been determined at pressures up to 80 kbar by the electrical resistance measurement technique. T c decreases almost linearly with increasing pressure at a rate of -0.9±0.1°C/kbar, making a striking contrast to the behaviors of the other ordering alloys hitherto studied. The observed pressure dependence of T c has suggested the existence of a high pressure modification, but an extended investigation including X-ray diffraction analysis on pressurized and quenched samples has shown that the L11-type ordered structure remains stable at least up to 120 kbar.Keywords
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