1. ScPd2Al3 New Polymorphic Phase in Al-Pd-Sc System
- Author
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Pospíšil, Jiří, Haga, Yoshinori, Nakajima, Kunihisa, Ishikawa, Norito, Císařová, Ivana, Tateiwa, Naoyuki, Yamamoto, Etsuji, and Yamamura, Tomoo
- Subjects
Condensed Matter - Materials Science - Abstract
We have discovered a new compound of the composition ScPd2Al3 crystallizing in unknown structure type. Moreover, ScPd2Al3 reveals polymorphism. We have found an orthorhombic crystal structure at room temperature and a high temperature cubic phase. The polymorphic phases are separated by a reversible first order transition at 1053{\deg}C with a hysteresis of 19{\deg}C. ScPd2Al3 exists as a very stable intermetallic phase just in the vicinity of the icosahedral quasicrystal Tsai-type i-phase Al54Pd30Sc16.
- Published
- 2017
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