Structure and properties of U alloys with selected d-metals and their hydrides

S. Sowa; N. T.H. Kim-Ngan; M. Krupska; M. Paukov; V. Buturlim; L. Havela

doi:10.1016/j.physb.2017.09.116

Structure and properties of U alloys with selected d-metals and their hydrides

S. Sowa
, N. T.H. Kim-Ngan
, M. Krupska
, M. Paukov
, V. Buturlim
, L. Havela

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

3 Scopus citations

Abstract

U-Ti and U-Ru alloys with various Ti, Ru concentrations were prepared using an ultrafast-cooling technique (splat cooling). A phase analysis by X-ray diffraction revealed the presence of the bcc γ-U phase developing with increasing concentration of alloying elements, while the concentration of orthorhombic α-U structure decreases. The tetragonally distorted γ° phase, (existing for 8–10 at. % Ru) is followed by pure cubic γ-U phase (for 12, 15% Ru). For Ti, more than 20 at. % is needed to yield pure γ-U phase. The occurrence of superconductivity was investigated by resistivity and specific heat measurements down to 0.4 K in various magnetic fields. All U-T splats studied become superconducting with T_c not exceeding 2.0 K.

Original language	English
Pages (from-to)	546-552
Number of pages	7
Journal	Physica B: Condensed Matter
Volume	536
Early online date	May 1 2018
DOIs	https://doi.org/10.1016/j.physb.2017.09.116 https://doi.org/10.1016/j.physb.2017.09.116
State	Published - May 1 2018
Externally published	Yes

Keywords

Electric properties
Hydrides
Superconductivity
Uranium alloys
γ-U phase

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title = "Structure and properties of U alloys with selected d-metals and their hydrides",

abstract = "U-Ti and U-Ru alloys with various Ti, Ru concentrations were prepared using an ultrafast-cooling technique (splat cooling). A phase analysis by X-ray diffraction revealed the presence of the bcc γ-U phase developing with increasing concentration of alloying elements, while the concentration of orthorhombic α-U structure decreases. The tetragonally distorted γ° phase, (existing for 8–10 at. \% Ru) is followed by pure cubic γ-U phase (for 12, 15\% Ru). For Ti, more than 20 at. \% is needed to yield pure γ-U phase. The occurrence of superconductivity was investigated by resistivity and specific heat measurements down to 0.4 K in various magnetic fields. All U-T splats studied become superconducting with Tc not exceeding 2.0 K.",

keywords = "Electric properties, Hydrides, Superconductivity, Uranium alloys, γ-U phase",

author = "S. Sowa and Kim-Ngan, \{N. T.H.\} and M. Krupska and M. Paukov and V. Buturlim and L. Havela",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2018",

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doi = "10.1016/j.physb.2017.09.116",

language = "English",

volume = "536",

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journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Structure and properties of U alloys with selected d-metals and their hydrides

AU - Sowa, S.

AU - Kim-Ngan, N. T.H.

AU - Krupska, M.

AU - Paukov, M.

AU - Buturlim, V.

AU - Havela, L.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - U-Ti and U-Ru alloys with various Ti, Ru concentrations were prepared using an ultrafast-cooling technique (splat cooling). A phase analysis by X-ray diffraction revealed the presence of the bcc γ-U phase developing with increasing concentration of alloying elements, while the concentration of orthorhombic α-U structure decreases. The tetragonally distorted γ° phase, (existing for 8–10 at. % Ru) is followed by pure cubic γ-U phase (for 12, 15% Ru). For Ti, more than 20 at. % is needed to yield pure γ-U phase. The occurrence of superconductivity was investigated by resistivity and specific heat measurements down to 0.4 K in various magnetic fields. All U-T splats studied become superconducting with Tc not exceeding 2.0 K.

AB - U-Ti and U-Ru alloys with various Ti, Ru concentrations were prepared using an ultrafast-cooling technique (splat cooling). A phase analysis by X-ray diffraction revealed the presence of the bcc γ-U phase developing with increasing concentration of alloying elements, while the concentration of orthorhombic α-U structure decreases. The tetragonally distorted γ° phase, (existing for 8–10 at. % Ru) is followed by pure cubic γ-U phase (for 12, 15% Ru). For Ti, more than 20 at. % is needed to yield pure γ-U phase. The occurrence of superconductivity was investigated by resistivity and specific heat measurements down to 0.4 K in various magnetic fields. All U-T splats studied become superconducting with Tc not exceeding 2.0 K.

KW - Electric properties

KW - Hydrides

KW - Superconductivity

KW - Uranium alloys

KW - γ-U phase

UR - https://www.scopus.com/pages/publications/85034080181

U2 - 10.1016/j.physb.2017.09.116

DO - 10.1016/j.physb.2017.09.116

M3 - Article

AN - SCOPUS:85034080181

SN - 0921-4526

VL - 536

SP - 546

EP - 552

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Structure and properties of U alloys with selected d-metals and their hydrides

Abstract

Keywords

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