Elastic properties of yttrium-doped BaCeO3 perovskite

Jianzhong Zhang; Yusheng Zhao; Hongwu Xu; Baosheng Li; Donald J. Weidner; Alexandra Navrotsky

doi:10.1063/1.2723679

Elastic properties of yttrium-doped BaCeO₃ perovskite

Jianzhong Zhang, Yusheng Zhao, Hongwu Xu, Baosheng Li, Donald J. Weidner, Alexandra Navrotsky

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

18 Scopus citations

Abstract

Based on ambient ultrasonic measurements and x-ray diffraction under hydrostatic compression, the authors report here a comparative study of elasticity on oxygen-deficient perovskite, BaCe_1-xY_xO _3-0.5x, with x=0.00 and 0.15. The results show that the presence of 2.5% oxygen vacancy has no measurable effect on the elastic bulk modulus. The shear modulus, however, decreases by approximately 5% in BaCe _0.85Y_0.15O_2.925 perovskite. The differences between Y³⁺-doped cerate and Al³⁺-doped silicate suggest that the effect of oxygen vacancy on the elastic properties could be system dependent and may also be sensitive to distribution of oxygen vacancies within structures of the parent compounds.

Original language	English (US)
Article number	161903
Journal	Applied Physics Letters
Volume	90
Issue number	16
DOIs	https://doi.org/10.1063/1.2723679
State	Published - 2007
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2723679

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title = "Elastic properties of yttrium-doped BaCeO3 perovskite",

abstract = "Based on ambient ultrasonic measurements and x-ray diffraction under hydrostatic compression, the authors report here a comparative study of elasticity on oxygen-deficient perovskite, BaCe1-xYxO 3-0.5x, with x=0.00 and 0.15. The results show that the presence of 2.5% oxygen vacancy has no measurable effect on the elastic bulk modulus. The shear modulus, however, decreases by approximately 5% in BaCe 0.85Y0.15O2.925 perovskite. The differences between Y3+-doped cerate and Al3+-doped silicate suggest that the effect of oxygen vacancy on the elastic properties could be system dependent and may also be sensitive to distribution of oxygen vacancies within structures of the parent compounds.",

author = "Jianzhong Zhang and Yusheng Zhao and Hongwu Xu and Baosheng Li and Weidner, {Donald J.} and Alexandra Navrotsky",

note = "Funding Information: This research is supported by Los Alamos National Laboratory, which is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. The ultrasonic measurements were carried out at Mineral Physics Institute of State University of New York at Stony Brook. The high-pressure synchrotron experiment was performed at beamline X17B2 of NSLS of BNL, which is supported by the Consortium for Materials Properties Research in Earth Sciences (COMPRES) under National Science Foundation Cooperative Agreement EAR 01-35554. The authors thank T. He for providing the Ba Ce O 3 and Ba ( Ce 0.85 Y 0.15 ) O 2.925 perovskite samples. ",

year = "2007",

doi = "10.1063/1.2723679",

language = "English (US)",

volume = "90",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "16",

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AU - Zhang, Jianzhong

AU - Zhao, Yusheng

AU - Xu, Hongwu

AU - Li, Baosheng

AU - Weidner, Donald J.

AU - Navrotsky, Alexandra

N1 - Funding Information: This research is supported by Los Alamos National Laboratory, which is operated by Los Alamos National Security LLC under DOE Contract No. DE-AC52-06NA25396. The ultrasonic measurements were carried out at Mineral Physics Institute of State University of New York at Stony Brook. The high-pressure synchrotron experiment was performed at beamline X17B2 of NSLS of BNL, which is supported by the Consortium for Materials Properties Research in Earth Sciences (COMPRES) under National Science Foundation Cooperative Agreement EAR 01-35554. The authors thank T. He for providing the Ba Ce O 3 and Ba ( Ce 0.85 Y 0.15 ) O 2.925 perovskite samples.

PY - 2007

Y1 - 2007

N2 - Based on ambient ultrasonic measurements and x-ray diffraction under hydrostatic compression, the authors report here a comparative study of elasticity on oxygen-deficient perovskite, BaCe1-xYxO 3-0.5x, with x=0.00 and 0.15. The results show that the presence of 2.5% oxygen vacancy has no measurable effect on the elastic bulk modulus. The shear modulus, however, decreases by approximately 5% in BaCe 0.85Y0.15O2.925 perovskite. The differences between Y3+-doped cerate and Al3+-doped silicate suggest that the effect of oxygen vacancy on the elastic properties could be system dependent and may also be sensitive to distribution of oxygen vacancies within structures of the parent compounds.

AB - Based on ambient ultrasonic measurements and x-ray diffraction under hydrostatic compression, the authors report here a comparative study of elasticity on oxygen-deficient perovskite, BaCe1-xYxO 3-0.5x, with x=0.00 and 0.15. The results show that the presence of 2.5% oxygen vacancy has no measurable effect on the elastic bulk modulus. The shear modulus, however, decreases by approximately 5% in BaCe 0.85Y0.15O2.925 perovskite. The differences between Y3+-doped cerate and Al3+-doped silicate suggest that the effect of oxygen vacancy on the elastic properties could be system dependent and may also be sensitive to distribution of oxygen vacancies within structures of the parent compounds.

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Elastic properties of yttrium-doped BaCeO₃ perovskite

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