コロイドプロセスによる高性能炭化ケイ素の合成

• 平田 好洋

• 松永 直樹

書誌事項

タイトル別名

• Colloidal Processing of High Performance Silicon Carbide
• コロイドプロセス ニ ヨル コウセイノウ タンカ ケイソ ノ ゴウセイ

抄録

The combination of thermodynamics of colloidal suspensions and the DLVO theory succeeded in constructing a colloidal phase diagram in a map of surface potential and solid content of particles of 10-1000 nm diameters. The experimentally-determined packing density agreed with the prediction from the phase diagram. A phase transition from a dispersed suspension to a flocculated suspension during pressure filtration occurred when an applied pressure exceeded a critical value. Based on the colloidal phase transition, new filtration theories were developed for a flocculated suspension. Multi component colloidal suspensions of the 800 nm SiC-30 nm SiC-150 nm Al₂O₃-Y ions system were heterocoagulated to distribute uniformly the sintering additives （Al₂O₃ plus Y₂O₃） around SiC particles. The green compacts were highly densified above 99％ theoretical density by hot-pressing at 1950℃ and the sintered SiC provided flexural strengths above 1000 MPa.

収録刊行物

• 粉体工学会誌

  粉体工学会誌 48 (8), 542-551, 2011

  一般社団法人 粉体工学会

キーワード

• Colloidal suspension
• Phase diagram
• Pressure filtration
• Phase transition
• Silicon carbide

詳細情報

• CRID: 1390001204513494784
• NII論文ID: 10029617274
• NII書誌ID: AN00222757
• DOI: 10.4164/sptj.48.542
• ISSN: 18837239
• ISSN: 03866157
• NDL書誌ID: 11212168
• Web Site: http://id.ndl.go.jp/bib/11212168
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11212168
• Web Site: https://www.jstage.jst.go.jp/article/sptj/48/8/48_542/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可