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Title:
METHOD FOR POLISHING TAPE SUBSTRATE FOR OXIDE SUPERCONDUCTOR, OXIDE SUPERCONDUCTOR, AND BASE MATERIAL FOR OXIDE SUPERCONDUCTOR
Document Type and Number:
WIPO Patent Application WO/2008/016073
Kind Code:
A1
Abstract:
Provided is a surface polishing method for improving crystalline orientation of the surface of a tape-shaped metal base material so as to improve the critical current of a superconducting thin film. An oxide superconductor is composed of the tape-shaped base material, an intermediate layer formed on the tape-shaped base material, and an oxide superconducting thin film layer formed on the intermediate layer. In the method for polishing the surface of the tape-shaped base material to be polished, the surface to be polished is polished by continuously running the tape-shaped base material. The polishing step includes initial polishing and final polishing. At the end of the step, the surface average roughness (Ra) of the surface to be polished is 2 nanometers or less, and in-plane orientation (ΔΦ) of the intermediate layer is 5° or less.

Inventors:
HORIMOTO, Sanaki (4-1, Musashino 3-chome, Akishima-sh, Tokyo 21, 1960021, JP)
堀本 真樹 (〒21 東京都昭島市武蔵野3丁目4番1号 日本ミクロコーティング株式会社内 Tokyo, 1960021, JP)
NAGAMINE, Takuya (4-1, Musashino 3-chome, Akishima-sh, Tokyo 21, 1960021, JP)
永峯 拓也 (〒21 東京都昭島市武蔵野3丁目4番1号 日本ミクロコーティング株式会社内 Tokyo, 1960021, JP)
WATANABE, Takehiro (4-1, Musashino 3-chome, Akishima-sh, Tokyo 21, 1960021, JP)
渡邉 武洋 (〒21 東京都昭島市武蔵野3丁目4番1号 日本ミクロコーティング株式会社内 Tokyo, 1960021, JP)
MUROKAWA, fumi (4-1, Musashino 3-chome, Akishima-sh, Tokyo 21, 1960021, JP)
Application Number:
JP2007/065053
Publication Date:
February 07, 2008
Filing Date:
August 01, 2007
Export Citation:
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Assignee:
NIHON MICROCOATING CO., LTD. (4-1 Musashino 3-chome, Akishima-shi Tokyo, 21, 1960021, JP)
日本ミクロコーティング株式会社 (〒21 東京都昭島市武蔵野3丁目4番1号 Tokyo, 1960021, JP)
HORIMOTO, Sanaki (4-1, Musashino 3-chome, Akishima-sh, Tokyo 21, 1960021, JP)
堀本 真樹 (〒21 東京都昭島市武蔵野3丁目4番1号 日本ミクロコーティング株式会社内 Tokyo, 1960021, JP)
NAGAMINE, Takuya (4-1, Musashino 3-chome, Akishima-sh, Tokyo 21, 1960021, JP)
永峯 拓也 (〒21 東京都昭島市武蔵野3丁目4番1号 日本ミクロコーティング株式会社内 Tokyo, 1960021, JP)
WATANABE, Takehiro (4-1, Musashino 3-chome, Akishima-sh, Tokyo 21, 1960021, JP)
渡邉 武洋 (〒21 東京都昭島市武蔵野3丁目4番1号 日本ミクロコーティング株式会社内 Tokyo, 1960021, JP)
International Classes:
H01B13/00; B24B7/13; B24B21/00; B24B37/00; C01G1/00; H01B12/06
Attorney, Agent or Firm:
TAKEUCHI, Sumio (NBF Toranomon Building 6-21, Nishishimbashi 1-chome Minato-k, Tokyo 03, 10500, JP)
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