ScPd2Al3 – New polymorphic phase in Al-Pd-Sc system

Jiří Pospíšil, Yoshinori Haga, Kunihisa Nakajima, Norito Ishikawa, Ivana Císařová, Naoyuki Tateiwa, Etsuji Yamamoto, Tomoo Yamamura

Research output: Contribution to journalArticlepeer-review


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 °C with a hysteresis of 19 °C. ScPd2Al3 exists as a very stable intermetallic phase just in the vicinity of the icosahedral quasicrystal Tsai-type i-phase Al54Pd30Sc16.

Original languageEnglish
Pages (from-to)12-14
Number of pages3
JournalSolid State Communications
Publication statusPublished - 2017 Dec


  • Al-Pd-Sc
  • Polymorphism
  • ScPdAl
  • YPdAl

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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