Phase diagram of the NdO1.5-SrO-CuO system

Takahiro Yamada; Toshinobu Niinae; Yasunori Ikeda; Zenji Hiroi; Mikio Takano; Yoshichika Bando

doi:10.2497/jjspm.45.114

Phase diagram of the NdO_1.5-SrO-CuO system

Takahiro Yamada, Toshinobu Niinae, Yasunori Ikeda, Zenji Hiroi, Mikio Takano, Yoshichika Bando

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

Abstract

Subsolidus phase diagram of the NdO_1.5-SrO-CuO system was studied at 980°C and 1080°C in Air. One ternary compound Sr_1.08Nd_1.92Cu₂O_6-δ, and three solid solutions exist; Sr_14-xNd_xCu₂₄O_41+δ(0≤x≤6.0 at 980°C), Sr_2-xNd_1+xCu₂O_5.5+δ (0.05≤x≤0.20 at 980°C; 0.05≤x≤0.35 at 1080°C), and Sr_2-xNd_xCuO_3+δ (x=2/3 at 980°C; 0.5≤x≤0.95 at 1080°C). Sr_2-xNd_xCuO_3+δ which crystallizes in the oxygen deficient K₂NiF₄ structure shows a unique modulated structure. The origin of the modulated structure is suggested to be a large lattice mismatch between the (Sr,Nd)₂O₂ and the CuO_1+δ layer.

Original language	English
Pages (from-to)	114-118
Number of pages	5
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	45
Issue number	2
DOIs	https://doi.org/10.2497/jjspm.45.114
Publication status	Published - 1998
Externally published	Yes

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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title = "Phase diagram of the NdO1.5-SrO-CuO system",

abstract = "Subsolidus phase diagram of the NdO1.5-SrO-CuO system was studied at 980°C and 1080°C in Air. One ternary compound Sr1.08Nd1.92Cu2O6-δ, and three solid solutions exist; Sr14-xNdxCu24O41+δ(0≤x≤6.0 at 980°C), Sr2-xNd1+xCu2O5.5+δ (0.05≤x≤0.20 at 980°C; 0.05≤x≤0.35 at 1080°C), and Sr2-xNdxCuO3+δ (x=2/3 at 980°C; 0.5≤x≤0.95 at 1080°C). Sr2-xNdxCuO3+δ which crystallizes in the oxygen deficient K2NiF4 structure shows a unique modulated structure. The origin of the modulated structure is suggested to be a large lattice mismatch between the (Sr,Nd)2O2 and the CuO1+δ layer.",

author = "Takahiro Yamada and Toshinobu Niinae and Yasunori Ikeda and Zenji Hiroi and Mikio Takano and Yoshichika Bando",

year = "1998",

doi = "10.2497/jjspm.45.114",

language = "English",

volume = "45",

pages = "114--118",

journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

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publisher = "Funtai Funamtsu Yakin Kyokai/Japan Soc. of Powder Metallurgy",

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T1 - Phase diagram of the NdO1.5-SrO-CuO system

AU - Yamada, Takahiro

AU - Niinae, Toshinobu

AU - Ikeda, Yasunori

AU - Hiroi, Zenji

AU - Takano, Mikio

AU - Bando, Yoshichika

PY - 1998

Y1 - 1998

N2 - Subsolidus phase diagram of the NdO1.5-SrO-CuO system was studied at 980°C and 1080°C in Air. One ternary compound Sr1.08Nd1.92Cu2O6-δ, and three solid solutions exist; Sr14-xNdxCu24O41+δ(0≤x≤6.0 at 980°C), Sr2-xNd1+xCu2O5.5+δ (0.05≤x≤0.20 at 980°C; 0.05≤x≤0.35 at 1080°C), and Sr2-xNdxCuO3+δ (x=2/3 at 980°C; 0.5≤x≤0.95 at 1080°C). Sr2-xNdxCuO3+δ which crystallizes in the oxygen deficient K2NiF4 structure shows a unique modulated structure. The origin of the modulated structure is suggested to be a large lattice mismatch between the (Sr,Nd)2O2 and the CuO1+δ layer.

AB - Subsolidus phase diagram of the NdO1.5-SrO-CuO system was studied at 980°C and 1080°C in Air. One ternary compound Sr1.08Nd1.92Cu2O6-δ, and three solid solutions exist; Sr14-xNdxCu24O41+δ(0≤x≤6.0 at 980°C), Sr2-xNd1+xCu2O5.5+δ (0.05≤x≤0.20 at 980°C; 0.05≤x≤0.35 at 1080°C), and Sr2-xNdxCuO3+δ (x=2/3 at 980°C; 0.5≤x≤0.95 at 1080°C). Sr2-xNdxCuO3+δ which crystallizes in the oxygen deficient K2NiF4 structure shows a unique modulated structure. The origin of the modulated structure is suggested to be a large lattice mismatch between the (Sr,Nd)2O2 and the CuO1+δ layer.

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Phase diagram of the NdO_1.5-SrO-CuO system

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