Morphology and growth mechanism of alumina whiskers in aluminum-based metal matrix composites
Publication in refereed journal

香港中文大學研究人員

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其它資訊
摘要A process has been invented for growing alumina (Al2O3) whiskers in the matrix of the aluminum-based metal matrix composite by the internal oxidation reaction between aluminum (Al) and molybdenum oxide (MoO3) at 850 degrees C. The whiskers were formed during the firing stage and distributed uniformly throughout the metal matrix. The fractional volume of the whiskers was about 30%, and their average size was 1 mu m in diameter and 10 mu m in length. The growth mechanism of the Al2O3 whiskers was studied. It was found that the nutrient for the growth of the whiskers was supplied from the molten Al at the base of the whiskers where they reacted with MoO3, forming the Al2O3 whiskers and the Al-Mo intermetallic phases.
著者Li YF, Qin CD, Ng DHL
期刊名稱Journal of Materials Research
出版年份1999
月份7
日期1
卷號14
期次7
出版社MATERIALS RESEARCH SOCIETY
頁次2997 - 3000
國際標準期刊號0884-2914
語言英式英語
Web of Science 學科類別Materials Science; Materials Science, Multidisciplinary; MATERIALS SCIENCE, MULTIDISCIPLINARY

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