The Preparation and Characterization of β-SiAlON Nanostructure Whiskers

被引：14
|
作者：
Dong, Pengli [2 ,3 ]
Wang, Xidong [1 ]
Zhang, Mei [2 ]
Guo, Min [2 ]
Seetharaman, Seshadri [3 ]
机构：
[1] Peking Univ, Coll Engn, Beijing 100871, Peoples R China
[2] Univ Sci & Technol, Dept Phys Chem, Beijing 100083, Peoples R China
[3] Royal Inst Technol, Dept Mat Sci Engn, SE-10044 Stockholm, Sweden
来源：
JOURNAL OF NANOMATERIALS | 2008年 / 2008卷
基金：
美国国家科学基金会;
关键词：
D O I：
10.1155/2008/282187
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Two kinds of beta-SiAlON nanostructure whiskers, rod-like and wool-like whiskers, were synthesized by pressure-less sintering method at 1773 K for 5 hours. The whiskers synthesized were characterized by powder X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and high-resolution electron microscope (HREM) techniques. It was found that diameter distribution of rod-like whiskers was about 80-250 nm, while it was about 45-55 nm in diameter for the wool-like whiskers. The growth mechanisms of beta-SiAlON nanostructure whiskers are discussed by the vapor-solid (VS) and vapor-liquid-solid (VLS) mechanisms, respectively. Copyright (C) 2008 Pengli Dong et al.
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页数：6
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