Synthesis of AL2O3 nanowires by heat-treating AL4O4C in a carbon-containing environment

被引：11
|
作者：
Cheng, Keren [1 ]
Deng, Chengji [1 ]
Ding, Jun [1 ]
Yu, Chao [1 ]
Zhu, Hongxi [1 ]
机构：
[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Hubei, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2018年 / 44卷 / 05期
基金：
中国国家自然科学基金;
关键词：
AL(2)O(3); Al4O4C; Synthesis; Nanowires; CARBOTHERMAL REDUCTION PROCESS; AL4O4C; GROWTH; AL2O3; TEMPERATURE; NITRIDATION; ALPHA-AL2O3; OXIDATION; CRYSTALS; BEHAVIOR;
D O I：
10.1016/j.ceramint.2017.12.095
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel route was developed for the synthesis of Al2O3 nanowires by heat-treating Al4O4C via Si atom doping in a furnace with a carbon heater. The nanowires had dimensions of 20-60 nm in diameter and a few hundred microns in length, and were tunable by adjusting the heating temperature. Al2O3 nanowires exhibited a curved, or twisted, structure and the interface of the bending part had a defective microstructure. The study of their growth mechanism indicates that the Al2O3 nanowires grew by a vapour liquid solid (VLS) growth process.
引用
收藏
页码：4996 / 5001
页数：6
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