Lee, Kon-Bae Yoo, Seong-Hyeon Kim, Yong-Hwan Han, Chul-Woong Won, Sung-Ok Ahn, Jae-Pyung Choi, Hyun-Joo 2024-01-20T01:02:01Z 2024-01-20T01:02:01Z 2021-09-04 2017-08 0021-9983 https://pubs.kist.re.kr/handle/201004/122492 In this study, a novel process was developed to produce Al/AlN composites by infiltrating molten Al ingot into a mixture of Al and lamp carbon powders. The findings revealed that, during the process, Al2O3 on the surface of Al powder reacted with nitrogen gas and was transformed to AlN. The degree of nitridation was greatly enhanced by adding only less than 3 wt.% lamp carbon, because lamp carbon could act as a dispersion agent as well as a reduction agent. The Al-based composites containing in situ AlN phases showed coefficient of thermal expansion values of similar to 11 x 10(-6)/degrees C, which were comparable to those of composites containing 60% ex situ AlN particles. English SAGE PUBLICATIONS LTD METAL-MATRIX COMPOSITES MECHANICAL-PROPERTIES ALNP/AL COMPOSITE ALUMINUM CONDUCTIVITY POWDER TEMPERATURE NITRIDATION A cost-effective route to produce Al/AlN composites with low coefficient of thermal expansion Article 10.1177/0021998317716528 1 JOURNAL OF COMPOSITE MATERIALS, v.51, no.20, pp.2845 - 2851 JOURNAL OF COMPOSITE MATERIALS 51 20 2845 2851 scie scopus 000406833100003 2-s2.0-85026850998 Materials Science, Composites Materials Science Article METAL-MATRIX COMPOSITES MECHANICAL-PROPERTIES ALNP/AL COMPOSITE ALUMINUM CONDUCTIVITY POWDER TEMPERATURE NITRIDATION Composite materials in situ reaction aluminum nitridation lamp carbon