ＣａＳ焼結体の作製とキャラクタリゼーション

• 平川 敏弘

  九州大学大学院　総合理工学府　量子プロセス理工学専攻

• 岩崎 峰人

  九州大学大学院　総合理工学府　量子プロセス理工学専攻

• 武部 博倫

  九州大学　総合理工学研究院　融合創造理工学部門

• 森永 健次

  九州大学　総合理工学研究院　融合創造理工学部門

書誌事項

タイトル別名

• Preparation and Characterization of Liquid-Sintered CaS
• CaS ショウケツタイ ノ サクセイ ト キャラクタリゼーション

抄録

Dense CaS ceramics were prepared by liquid-phase sintering with Ga₂S₃ additives (0 ∼ 1.0 mol%). A relative density of 96.2% was achieved by the sintering of CaS samples with 0.5mol% Ga₂S₃, fired at 1573K for 6h in Ar flow. Sintering process was investigated with scanning electron microscopy observations and linear shrinkage measurements. The sintering process of Ga₂S₃-doped CaS was found to be followed by 3 steps: (1) the rearrangement of CaS particles by CaS-Ga₂S₃ liquid, (2) the dissolution of CaS particles and the precipitation of CaS grains due to diffusion-controlled process and (3) the growth of precipitated CaS grains. X-ray diffraction and microstructural analyses with an energy dispersive X-ray fluorescence spectrometer revealed that sintered CaS has mainly CaS phase and CaS-Ga₂S₃ liquid segregated around grain boundaries. The thermal expansion coefficient of sintered CaS was 19.1 × 10^-6/K in the range room temperature to 1273K. It was suggested that ceramic materials with similar thermal expansion coefficients are appropriate for the substrate of CaS based thin film electroluminescence.

収録刊行物

• 資源と素材

  資源と素材 119 (12), 755-758, 2003

  一般社団法人 資源・素材学会

キーワード

• 硫化カルシウム
• 三硫化ガリウム
• 液相焼結
• 微細構造
• 熱膨張係数

詳細情報

• CRID: 1390282681026094848
• NII論文ID: 10011983201
• NII書誌ID: AN10062646
• DOI: 10.2473/shigentosozai.119.755
• COI: 1:CAS:528:DC%2BD2cXjs1SnsA%3D%3D
• ISSN: 18806244
• ISSN: 09161740
• ISSN: http://id.crossref.org/issn/09161740
• NDL書誌ID: 6809829
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6809829
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可