Phase Formation and Interfacial Phenomena of the In-Situ Combustion Reaction of Al-Ti-C in TiC/Mg Composites

• Jo Ilguk

  Department of Metallurgical and Materials Engineering, Colorado School of Mines Functional Composites Department, Composites Research Division, Korea Institute of Materials Science

• Jeon Seol

  School of Materials Science and Engineering, Pusan National University

• Lee Eunkyung

  Department of Metallurgical and Materials Engineering, Colorado School of Mines

• Cho Seungchan

  Functional Composites Department, Composites Research Division, Korea Institute of Materials Science

• Lee Heesoo

  Department of Metallurgical and Materials Engineering, Colorado School of Mines School of Materials Science and Engineering, Pusan National University

書誌事項

タイトル別名

• Phase Formation and Interfacial Phenomena of the <i>In-Situ</i> Combustion Reaction of Al-Ti-C in TiC/Mg Composites

抄録

Phase evolution and interfacial characteristics through the combustion reaction of Al-Ti-C system were investigated, in terms of the reaction mechanism. The phase formation in the reaction system at 650, 660, and 670°C by in-situ high temperature X-ray diffraction (HT-XRD) showed the formation of the solid Al₃Ti phase, along with melting of the Al at 660°C. Microstructural analysis of the Al-Ti-C system after holding at 670°C was carried out to identify the reaction mechanisms, which were the formation and growth of the Al₃Ti phase by dissolving Ti in molten Al. This phase occurs with further contact with C, and would initiate the combustion reaction to produce a more thermodynamically stable TiC phase. Mg-infiltrated 3.04 mm in the Al-TiC substrate was compared to 5.42 mm in the Al-Ti-C system, at the same time and temperature from the infiltration test. The apparent activation energy obtained for Al-TiC system was 350.84 kJ/mol, which was higher than that of the Al-Ti-C system (307.31 kJ/mol). The formation of the Al₃Ti phase in the Al-Ti-C system was also observed from the crystal structural analysis on the infiltrated area; therefore, the in-situ combustion reaction in Al-Ti-C system promoted the wetting of Mg.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 56 (5), 661-664, 2015

  公益社団法人 日本金属学会

キーワード

• titanium carbide/magnesium
• metal matrix composite
• <i>in-situ</i> combustion synthesis
• reaction mechanism
• aluminum-titanium-graphite system
• infiltration

詳細情報

• CRID: 1390001204254151168
• NII論文ID: 130005065979
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2014323
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 026355445
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026355445
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/56/5/56_M2014323/_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