Cu置換によるYIGの低温焼結化 Low Temperature Sintering of Cu-substituted YIG

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Co-firing of YIG and conductors enables miniaturized, broadband isolators. The problem is that the conductors are melted in the co-fired body because firing temperatures of YIG are generally higher than the melting points of highly conductive metals like Ag. We have focused on Au as the conductor because it has the highest melting point among highly conductive metals. Then we have tried to reduce firing temperature of YIG by Cu-substitution. When a was 0.05 in (Ca<SUB>2x</SUB>Y<SUB>3-2x</SUB>)(Fe<SUB>5-x-y-z-2α</SUB>V<SUB>x</SUB>Al<SUB>y</SUB>In<SUB>2</SUB>Cu<SUB>α</SUB>Zr<SUB>α</SUB>)O<SUB>12</SUB>, the YIG was able to be fired at 1020°C, lower than melting point of Au (1064°C), with narrow ferromagnetic resonance as ΔH=33Oe. Accordingly it is achieved that sintering temperature is reduced by 60°C compared to the YIG at α=0. It is thought that Cu segregates at grain boundary, when α is larger than 0.05.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 49(2), 95-99, 2002-02-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10008007323
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    6059908
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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