Improvement of high conductivity in alumina-calcia system electride crystals by copper-substitution and clarification of its electrical conductivity mechanism

2012 Fiscal Year Final Research Report

• Project/Area Number: 22605004
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: 元素戦略
• Research Institution: University of Yamanashi
• Principal Investigator: TANAKA Isao 山梨大学, 大学院・医学工学総合研究部, 教授 (40155114)
• Co-Investigator(Kenkyū-buntansha): NAGAO Masanori 山梨大学, 大学院・医学工学総合研究部, 助教 (10512478)
• Project Period (FY): 2010 – 2012
• Keywords: アルミン酸カルシウム / 単結晶育成 / 固液界面制御 / 還元熱処理

Research Abstract

We succeeded to grow bubble- and subgrain-free high quality single crystals of Cu-substituted Ca12Al14O33 (Cu:C12A7) with large diameter of 15 mm by the image-focus floating zone method using halogen lamps of a coil-shape filament. Th

Research Products

• [Presentation] Control of Crystal-Liquid Interface during FZ Growth of Oxides (2013)
  • Author(s): Isao Tanaka
  • Organizer: Workshop "Floating Zone Technique"
  • Place of Presentation: ドイツLeibniz Institute of Solid State and Materials Research.
  • Year and Date: 2013-02-21
• [Presentation] 銅置換 C12A7 単結晶の FZ 育成における加熱ランプのフィラメント形状による固液界面形状への影響 (2012)
  • Author(s): 柿澤浩太,長尾雅則,綿 打 敏 司 ,田中 功
  • Organizer: 第73回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2012-09-13
• [Presentation] 柿澤浩太,長尾雅則,綿 打 敏 司 ,田中 功 (2012)
  • Author(s): 柿澤浩太,長尾雅則,綿 打 敏 司 ,田中 功
  • Organizer: 第28回日本セラミックス協会関東支部研究発表会
  • Place of Presentation: 静岡大学浜松キャンパス
  • Year and Date: 2012-08-08
• [Presentation] Control of Solid-Liquid Interface of Molten Zone by Mirror-Tilted Floating Zone Growth (2012)
  • Author(s): Isao Tanaka, A.R. Sarker, Ryuuichi Hada, Masanori Nagao, Satoshi Watauchi
  • Organizer: 4th European Conference on Crystal Growth (ECCG4)
  • Place of Presentation: 英国University of Strathclyde
  • Year and Date: 2012-06-18
• [Presentation] Growth Interface Control for Cu-substituted Calcium Aluminate by FZ method (2012)
  • Author(s): Kota Kakizawa, Masanori Nagao, Satoshi Watauchi, Isao Tanaka
  • Organizer: 4th European Conference on Crystal Growth (ECCG4)
  • Place of Presentation: 英国University of Strathclyde
  • Year and Date: 2012-06-18
• [Presentation] FZ Growth and Electrical Conductivity of Cu~2+-substituted Mayenite (Ca_12-xCu_xAl_14O_33) Single Crystals (2011)
  • Author(s): Isao Tanaka, Yohei Komaya, Takumi Shimomura, Masanori Nagao, Satoshi Watauchi
  • Organizer: 2011 KACG International Symposium on Crystal Growth(招待講演)
  • Place of Presentation: 韓国Hanyang University
  • Year and Date: 2011-10-14
• [Presentation] 銅置換アルミン酸カルシウム(Ca_12-xCu_xAl_14O_33)単結晶のエレクトライド化とESR評価 (2011)
  • Author(s): 駒谷洋平,長尾雅則,綿 打 敏 司 ,田中 功
  • Organizer: 電気化学会第78回大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2011-03-31
• [Presentation] Preparation and Characterization of Cu~2+-substituted Calcium Aluminate Electride (2010)
  • Author(s): Yohei Komaya, Masanori Nagao, Satoshi Watauchi, Isao Tanaka
  • Organizer: 3rd International Congress on Ceramics (ICC3)
  • Place of Presentation: 大阪国際会議場
  • Year and Date: 2010-11-15
• [Presentation] 傾斜ミラー型FZ法によるアルミン酸カルシウム(Ca_12-xCu_xAl_14O_33)単結晶の育成 (2010)
  • Author(s): 羽田龍一,長尾雅則,綿打敏司,田中 功
  • Organizer: 第26回日本セラミックス協会関東支部研究発表会
  • Place of Presentation: 日立市多賀市民会館
  • Year and Date: 2010-09-22
• [Presentation] Cu 置換アルミン酸カルシウム(Ca_12-xCu_xAl_14O_33)単結晶のFZ育成とエレクトライド化 (2010)
  • Author(s): 駒谷洋平,長尾雅則,綿 打 敏 司 ,田中 功
  • Organizer: 2010 年度セラミックス総合研究会
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-02
• [Remarks]
  • URL: http://erdb.yamanashi.ac.jp/rdb/A_DispInfo.Scholar/0/A7C97FEAF2387814.html