TOP > 外国特許検索 > LIGHT-TRANSMISSIVE POLYCRYSTALLINE MATERIAL AND METHOD FOR PRODUCING THE SAME

LIGHT-TRANSMISSIVE POLYCRYSTALLINE MATERIAL AND METHOD FOR PRODUCING THE SAME

外国特許コード F120006958
整理番号 S2009-0216
掲載日 2012年10月26日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2009JP007279
国際公開番号 WO 2010/073712
国際出願日 平成21年12月25日(2009.12.25)
国際公開日 平成22年7月1日(2010.7.1)
優先権データ
  • 特願2008-329934 (2008.12.25) JP
発明の名称 (英語) LIGHT-TRANSMISSIVE POLYCRYSTALLINE MATERIAL AND METHOD FOR PRODUCING THE SAME
発明の概要(英語)

Provided is a method for producing a light-transmissive polycrystalline material wherein a suspension (slurry 1) is prepared by suspending, in a solution, a starting powder which comprises optically-anisotropic single crystal grains to which a rare earth element has been added. A molded article is obtained from the suspension by slip casting within the space of a magnetic field. The temperature is controlled at this time such that the single crystal grains demonstrate a predetermined magnetic anisotropy while a static magnetic field or a rotary magnetic field is selected and applied in the direction of the easy axis of magnetization of the single crystal grains. The molded article is baked to obtain a light-transmissive polycrystalline material having a polycrystalline structure wherein the crystal orientation is controlled. During this baking step, the molded article is subjected to primary sintering at a temperature of 1,600 to 1,900 K and the primary sintered compact is then subjected to hot isostatic pressing (HIP treatment) at a temperature of 1,600 to 1,900 K.

  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES,
  • GENESIS RESEARCH INSTITUTE, INCORPORATED,
  • TAIRA, TAKUNORI,
  • AKIYAMA, JUN,
  • ASAI, SHIGEO,
  • HARA, KUNIHIKO
  • 発明者(英語)
  • TAIRA, TAKUNORI,
  • AKIYAMA, JUN,
  • ASAI, SHIGEO,
  • HARA, KUNIHIKO
国際特許分類(IPC)

PAGE TOP

close
close
close
close
close
close