Two-Step Infiltration of Aluminum Melts into Al-Ti-B4C-CuO Powder Mixture Pellets

Jingjing Zhang; 이정무; Young-Hee Cho; Su-Hyeon Kim; Huashun Yu

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자료유형: 학술저널

저자정보: Jingjing Zhang (Korea Institute of Materials Science) 이정무 (한국기계연구원부설 재료연구소) Young-Hee Cho (Korea Institute of Materials Science) Su-Hyeon Kim (Korea Institute of Materials Science) Huashun Yu (Shandong University)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.22 No.2

발행연도: 2016.1

수록면: 324 - 331 (8page)

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Aluminum matrix composites with a high volume fraction of B4C and TiB2 were fabricated by a novel processing technique - a quick spontaneous infiltration process. The process combines a pressureless infiltration with the combustion reaction of Al-Ti-B4C-CuO in molten aluminum. The process is realized in a simple and economical way in which the whole process is performed in air in a few minutes. To verify the rapidity of the process, the infiltration kinetics was calculated based on the Washburn equation in which melt flows into a porous skeleton. However, there was a noticeable deviation from the calculated results with the experimental results. Considering the cross-sections of the samples at different processing times, a new infiltration model (two step infiltration) consisting of macro-infiltration and micro-infiltration is suggested. The calculated kinetics results in light of the proposed model agree well with the experimental results.

참고문헌 (21)

참고문헌 신청

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한상조 / 2015 / Fabrication of Al2O3 Dispersion Strengthened Copper Alloy by Spray In-Situ Synthesis Casting Process / Metals and Materials International 21(2):270~275

김정근 / 2013 / 분말야금법으로 제조한 A359/SiCp 복합재료의 미세조직 및 기계적 특성에 미치는 강화재의 분포와 크기의 영향 / 대한금속·재료학회지 51(12):857~863

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