Large-scale fast synthesis of single-crystalline alpha-alumina nanotubes
Large-scale fast synthesis of single-crystalline alpha-alumina nanotubes
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DOI：
10.1016/j.ceramint.2014.08.110
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发表时间：
2015-03
影响因子：
5.2
通讯作者：
G. Zhao;L. Xia;B. Zhong;Liangcheng Song;G. Wen
中科院分区：
文献类型：
--
作者：
G. Zhao;L. Xia;B. Zhong;Liangcheng Song;G. Wen
以纯Al粉为原料，采用感应加热快速蒸发法制备了大规模单晶α-Al_2O_3纳米管。用场发射扫描电子显微镜和透射电子显微镜研究了纳米管的形貌和结构。纳米管的直径约为20 nm到150 nm，长度可达10μm以上，并对其形成机理进行了讨论。α-Al_2O_3管状结构的形成可能是相变伴随空洞的产生。
Large-scale single-crystalline α-Al2O3nanotubes were synthesized by fast evaporation of pure Al powders using induction heating. The morphology and structure of the nanotubes were investigated by field emission scanning electron microscopy and transmission electron microscopy. The nanotubes exhibit a broad diameter-scale from about 20 nm to 150 nm and length up to more than 10 μm. The possible formation mechanism of the nanotubes was discussed. Phase transformation accompanied void generation might result in the α-Al2O3tubular structure.