期刊
POWDER TECHNOLOGY
卷 212, 期 2, 页码 310-315出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.powtec.2011.06.003
关键词
Aluminum borate; Nanowhisker; Ball-milling; Solution-Liquid-Solid mechanism
资金
- Tianjin Municipal Science and Technology Commission [08ZCKFGX21600]
- National Basic Research Program of China [2010CB934700]
Single-crystal aluminum borate (Al4B2O9) nanowhiskers with diameters from 20 to 200 nm have been synthesized on the surface of aluminum powder at relatively low temperatures after high energy ball-milling pretreatment. It was found that the reaction temperature plays an important role in determining the diameter and length of the single-crystal Al4B2O9 nanowhiskers. The growth of the nanowhiskers can occur at a low temperature of 650 degrees C due to the ball-milling pretreatment. The growth mechanism of the nanowhiskers is considered to be the solution-liquid-solid (SLS) growth. Our in-situ growth of nanowhiskers on the aluminum matrix is an effective way to prepare Al4B2O9 nanowhisker/aluminum composite powders with homogenous distribution of the reinforcement. (C) 2011 Elsevier B.V. All rights reserved.
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