等方性黒鉛の黒鉛化過程における構造，物性変化の速度論的検討

• 岡田 雅樹

  東洋炭素株式会社技術開発本部

• 辰巳 誠

  東洋炭素株式会社技術開発本部

• 太田 直人

  東洋炭素株式会社技術開発本部

書誌事項

タイトル別名

• Kinetic studies on the changes in structural and physical properties of isotropic graphite during graphitization
• トウ カタセイ コクエン ノ コクエンカ カテイ ニ オケル コウゾウ,ブッセイ ヘンカ ノ ソクドロンテキ ケントウ

抄録

The effect of the residence time at different temperatures on the graphitization of an isotropic baked block was investigated by measuring the changes in structural and physical properties; lattice constant c₀, real density, resistivity, hardness and mechanical properties. Samples were heat-treated at different temperatures ranging from 2100 to 3000 °C for residence times from 3 to 960 min. Three different calcined cokes, two derived from pitches with either mosaic or needle-like textures, and one derived from petroleum with a mosaic texture, were also heat-treated and analyzed for comparison. Master curves for properties were obtained on the baked block by a time-temperature superposition rule, and discussed by comparing with those of cokes. The same shift factors to convert between heat-treatment temperature and time could be used to obtain master curves for the structural and physical properties measured, suggesting that the graphitization of these isotropic baked block and calcined cokes proceeds by almost the same process.

収録刊行物

• 炭素

  炭素 2012 (252), 54-62, 2012

  炭素材料学会

キーワード

• Graphitization
• Interlayer spacing
• Resistivity
• Real density
• Activation energy

詳細情報

• CRID: 1390001204226242688
• NII論文ID: 10030553970
• NII書誌ID: AN00140335
• DOI: 10.7209/tanso.2012.54
• ISSN: 18845495
• ISSN: 03715345
• NDL書誌ID: 023660444
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023660444
• 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