کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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237527 | 465712 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Low-temperature synthesis of aluminum borate nanowhiskers on the surface of aluminum powder promoted by ball-milling pretreatment Low-temperature synthesis of aluminum borate nanowhiskers on the surface of aluminum powder promoted by ball-milling pretreatment](/preview/png/237527.png)
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 °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.
Single-crystal aluminum borate 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 growth of the nanowhiskers can occur at a low temperature of 650 °C due to the ball-milling pretreatment.Figure optionsDownload as PowerPoint slideResearch highlights
► Ball-milling pretreatment reduces the growth temperature of the aluminum borate nanowhisker obviously.
► The aluminum borate nanowhiskers could in-situ generate on the aluminum powder surface.
► Reaction temperature plays an important role in determining the size and shape of the Al4B2O9 nanowhiskers.
Journal: Powder Technology - Volume 212, Issue 2, 10 October 2011, Pages 310–315