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Title:
METHOD FOR POLISHING TAPE SUBSTRATE FOR OXIDE SUPERCONDUCTOR AND OXIDE SUPERCONDUCTOR AND SUBSTRATE FOR OXIDE SUPERCONDUCTOR
Document Type and Number:
WIPO Patent Application WO/2008/023782
Kind Code:
A1
Abstract:
A surface polishing method for enhancing crystal orientation on the surface of a tapelike metal substrate in order to enhance the critical current of a superconducting thin film. In an oxide superconductor comprising a tapelike substrate, an intermediate layer formed on the tapelike substrate, and an oxide superconducting thin film layer formed on the intermediate layer, the method for polishing a surface to be polished of the tapelike substrate comprises a step for polishing the surface to be polished while traveling the tapelike substrate continuously, wherein an initial polishing step and a finish polishing step are included. Ultimately, the average surface roughness Ra of the polished surface is 2 nanometer or less and the in-plane orientation Δφ 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:
JP2007/066424
Publication Date:
February 28, 2008
Filing Date:
August 24, 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; B24B37/04; H01B12/06; C01G1/00; H01B13/00; B24B7/00; B24B21/00; B24B37/04; H01B12/06; C01G1/00
Attorney, Agent or Firm:
TAKEUCHI, Sumio et al. (NBF Toranomon Building, 6-21 Nishishimbashi 1-chom, Minato-ku Tokyo 03, 1050003, JP)
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