Synthesis and characterisation of Al4O4C nanorod/CNT composites

A novel route has been developed to synthesise Al4O4C nanorod/CNT composites by heat-treating Al4SiC4 in a furnace with carbon heater. The study of growth mechanism indicates that the Al4O4C nanorods grew by a vapour–vapour–solid (VVS) growth process. Al vapour evaporated from the Al4SiC4 at high te...

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Bibliographic Details
Published in:Ceramics international 2017-10, Vol.43 (14), p.11415-11420
Main Authors: Yu, Chao, Cheng, Keren, Ding, Jun, Deng, Chengji, Xue, Zhengliang, Wu, Xinxin, Zhu, Hongxi
Format: Article
Language:English
Subjects:
Al4O4C
Al4SiC4
CNTs
Nanorods
Synthesis
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Summary:A novel route has been developed to synthesise Al4O4C nanorod/CNT composites by heat-treating Al4SiC4 in a furnace with carbon heater. The study of growth mechanism indicates that the Al4O4C nanorods grew by a vapour–vapour–solid (VVS) growth process. Al vapour evaporated from the Al4SiC4 at high temperatures and reacted with CO to form the Al4O4C nuclei. Subsequently, Al4O4C nanorods grew upon the continuous deposition of Al vapour and CO on the Al4O4C nuclei. Low PCO and appropriate temperature are two important factors in the growth of such composites. Holding at 1500°C for 1h was determined to be the optimal conditions for growth of Al4O4C nanorod/CNT composites.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2017.05.352