TiN被覆珪素鋼板の磁気特性に及ぼす表面前処理の影響

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タイトル別名
  • Influence of Surface Treatment before Coating on Magnetic Properties of TiN-Coated Grain Oriented Silicon Steel Sheet
  • TiN ヒフク ケイソ コウハン ノ ジキ トクセイ ニ オヨボス ヒョウメン

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In order to clarify the influence of the pre-treatment on the magnetic properties of TiN-coated silicon steel sheets, various acid treatments on the silicon steel sheets were done prior to the TiN coating by the HCD method.<BR>With chemical polishing prior to TiN coating, the iron loss W17⁄50(W/kg) of the TiN-coated silicon steel sheets was dramatically improved by 0.20-0.24 W/kg. In contrast, with the pre-treatments with 10%H2SO4 and 10%HCl solutions, the improvement of W17⁄50(W/kg) was reduced to 0.1-0.14 W/kg. Also, the improvement of W17⁄50(W/kg) in the pre-treatment with the H2SO4 solution was less than that with the HCl solution.<BR>By the pre-treatments with 10%H2SO4 and 10%HCl solutions, the value of W17⁄50(W/kg) became lower than that of a silicon steel product, but by subsequent TiN coating both We and Wh were improved. However, the improvement of W17⁄50(W/kg) due to the pre-treatment with these acid solutions showed 60-70% of that in the case of chemical polishing.<BR>The thin-film X-ray diffraction in the 111 peak intensity of TiN became weaker in the order of chemical polishing, the 10%HCl solution and the 10%H2SO4 solution, and in the latter case showed 200, 220 and 311 peaks of TiN.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 61 (3), 235-240, 1997

    公益社団法人 日本金属学会

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