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

doi:10.1016/j.ssc.2017.09.001

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

International Research Center for Nuclear Materials Science

Research output: Contribution to journal › Article › peer-review

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 °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 language	English
Pages (from-to)	12-14
Number of pages	3
Journal	Solid State Communications
Volume	268
DOIs	https://doi.org/10.1016/j.ssc.2017.09.001
Publication status	Published - 2017 Dec

Keywords

Al-Pd-Sc
Polymorphism
ScPdAl
YPdAl

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.ssc.2017.09.001

Cite this

@article{e224ec8180704a4eb41481d04695d79d,

title = "ScPd2Al3 – New polymorphic phase in Al-Pd-Sc system",

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 °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.",

keywords = "Al-Pd-Sc, Polymorphism, ScPdAl, YPdAl",

author = "Ji{\v r}{\'i} Posp{\'i}{\v s}il and Yoshinori Haga and Kunihisa Nakajima and Norito Ishikawa and Ivana C{\'i}sa{\v r}ov{\'a} and Naoyuki Tateiwa and Etsuji Yamamoto and Tomoo Yamamura",

note = "Funding Information: This work was supported by the JSPS KAKENHI Nos. JP15H05852, 16K05463, and 15H05884 (J-Physics). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = dec,

doi = "10.1016/j.ssc.2017.09.001",

language = "English",

volume = "268",

pages = "12--14",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - ScPd2Al3 – New polymorphic phase in Al-Pd-Sc system

AU - Pospíšil, Jiří

AU - Haga, Yoshinori

AU - Nakajima, Kunihisa

AU - Ishikawa, Norito

AU - Císařová, Ivana

AU - Tateiwa, Naoyuki

AU - Yamamoto, Etsuji

AU - Yamamura, Tomoo

PY - 2017/12

Y1 - 2017/12

N2 - 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.

AB - 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.

KW - Al-Pd-Sc

KW - Polymorphism

KW - ScPdAl

KW - YPdAl

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U2 - 10.1016/j.ssc.2017.09.001

DO - 10.1016/j.ssc.2017.09.001

M3 - Article

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SN - 0038-1098

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SP - 12

EP - 14

JO - Solid State Communications

JF - Solid State Communications

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