Phase stability of Ln sub 2 BaCuO sub 5 (Ln = Dy,Er,Eu,Gd,Ho,Sm,Yb)

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb06087.x· OSTI ID:6819101

Nakahigashi, K; Tsuboi, T; Kogachi, M; Nakanishi, S; Minamigawa, S; Sasakura, H; Fukuoka, N ^[1]; Yoshiara, K ^[2]

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1. Dept. of Materials Science, Univ. of Osaka Prefecture, Sakai, Osaka (JP)
2. Materials and Devices Lab., Mitsubishi Electric Corp., Sagamihara, Kanagawa 229 (JP)

Phase stability of a series of Ln{sub 2}BaCuO{sub 5} (Ln = Dy,Er,Eu,Gd,Ho,Sm,Yb) has been studied as a function of oxygen partial pressure and temperature by x-ray diffraction, thermal gravimetric, and differential thermal analyses. Above the critical temperature Td{sub d}, phase decomposition with a decrease in sample weight took place. The behavior of rare-earth compounds with the Y{sub 2}BaCuO{sub 5} structure under different oxygen partial pressures and heat treatments is correlated with the effective ionic radii.

• OSTI ID: 6819101
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 72:12; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
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METALS
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OXIDES
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