- Effect of B4C Content on the Sintering Characteristics of 6061Al-B4C Composite Powder
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Jin-Ju Park, Sung-Mo Hong, Kyoung-Yeol Kim, Min-Ku Lee, Chang-Kyu Rhee, Won-Hyuk Rhee, Yang Kyu Lee
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J Korean Powder Metall Inst. 2013;20(3):215-220.
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DOI: https://doi.org/10.4150/KPMI.2013.20.3.215
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Abstract
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- In the present work, 6061 Al-B_4C sintered composites containing different B_4C contents were fabricated and their characteristic were investigated as a function of sintering temperature. For this, composite powders and their compacts with B_4C various contents from 0 to 40 wt.% were fabricated using a planetary ball milling equipment and cold isostatic pressing, respectively, and then they were sintered in the temperature ranges of 580 to 660°C. Above sintering temperature of 640°C, real density was decreased due to the occurrence of sweat phenomena. In addition, it was realized that sinterability of 6061Al-B_4C composite material was lowered with increasing B_4C content, resulting in the decrease in its real density and at the same time in the increment of porosity.
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