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http://dx.doi.org/10.4150/KPMI.2013.20.3.215

Effect of B4C Content on the Sintering Characteristics of 6061Al-B4C Composite Powder  

Park, Jin-Ju (Nuclear Materials Development Division, Korea Atomic Energy Research Institute (KAERI))
Hong, Sung-Mo (Nuclear Materials Development Division, Korea Atomic Energy Research Institute (KAERI))
Kim, Kyoung-Yeol (Nuclear Materials Development Division, Korea Atomic Energy Research Institute (KAERI))
Lee, Min-Ku (Nuclear Materials Development Division, Korea Atomic Energy Research Institute (KAERI))
Rhee, Chang-Kyu (Nuclear Materials Development Division, Korea Atomic Energy Research Institute (KAERI))
Rhee, Won-Hyuk (Daewha Alloytech)
Lee, Yang Kyu (Dept. of Management Information System, Seowon University)
Publication Information
Journal of Powder Materials / v.20, no.3, 2013 , pp. 215-220 More about this Journal
Abstract
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 $660^{\circ}C$. Above sintering temperature of $640^{\circ}C$, 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.
Keywords
6061Al-$B_4C$ composite; Sintering characteristic; $B_4C$ content;
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