Effect of Milling on the Carbothermal Reduction of Oxide Mixture for (Ti,W)C-Ni

• Kwon Hanjung

  Department of Materials Science and Engineering, Seoul National University

• Kang Shinhoo

  Department of Materials Science and Engineering, Seoul National University

抄録

The effect of high-energy milling on the phase transformation and carbothermal reduction was examined using an oxide mixture, TiO₂-WO₃-NiO-C, with a process to synthesize (Ti,W)C cermets. Due to the high energy involved in the mill raw, anatase TiO₂ transformed first to TiO₂-II and then to rutile, while WO₃ transformed to a high-pressure WO₃-HP and hexagonal WO₃ phase. The co-existence of WO₃ and TiO₂ enhanced the formation of a nano-crystalline or amorphous phase. The (Ti,W)C phase was formed mainly at 1150°C from TiC and WC formed in the early stages. These results were further examined using XRD, the Rietveld method and mass spectroscopy.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 49 (7), 1594-1599, 2008

  公益社団法人 日本金属学会

キーワード

• solid-solution
• cermets
• high-energy milling
• rietveld
• mass spectrometer

詳細情報

• CRID: 1390001204248908032
• NII論文ID: 10021148297
• NII論文ID: 130004454021
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.mra2007267
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 9555658
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9555658
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/49/7/49_MRA2007267/_pdf
• 本文言語コード: en
• 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