| Growth of platelike and branched single-crystalline Si/sub 3/N /sub 4/ whiskers | |
| Weiyou Yang ; Zhipeng Xie ; Jingjing Li ; Hezhuo Miao ; Ligong Zhang ; Linan Zn | |
| 2010-05-10 ; 2010-05-10 | |
| 关键词 | Experimental/ catalysts crystal growth from solution crystallisation nucleation pyrolysis silicon compounds whiskers (crystal)/ single crystalline Si/sub 3/N/sub 4/ whiskers platelike growth catalyst assisted pyrolysis polymeric precursors growth mechanism solid-liquid-gas-solid reaction crystallization anisotropic growth nucleation 200 to 300 nm 800 to 1200 nm Si/sub 3/N/sub 4// A8110D Crystal growth from solution A6870 Whiskers and dendrites: growth, structure, and nonelectronic properties A8230L Decomposition reactions (pyrolysis, dissociation, and group ejection) A6470D Solid-liquid transitions/ size 2.0E-07 to 3.0E-07 m size 8.0E-07 to 1.2E-06 m/ Si3N4/bin Si3/bin N4/bin Si/bin N/bin |
| 中文摘要 | In this communication, we report for the first time the growth of platelike and branched Si/sub 3/N/sub 4/ whiskers via catalyst-assisted pyrolysis of polymeric precursors. The as-prepared whiskers are single crystalline with a uniform thickness and width. The thickness and width of the Si/sub 3/N/sub 4/ whiskers range from 200 to 300 nm and 800 to 1200 nm, respectively. The platelike alpha -Si/sub 3/N/sub 4/ whiskers grew along [010] direction, while the branches grew along [001] direction. A growth mechanism based on solid-liquid-gas-solid reaction/crystallization is proposed. The formation of platelike whiskers instead of cylindrical whiskers is attributed to an anisotropic growth at an early nucleation/growth stage. |
| 语种 | 英语 ; 英语 |
| 出版者 | Elsevier ; USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/21928]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Weiyou Yang,Zhipeng Xie,Jingjing Li,et al. Growth of platelike and branched single-crystalline Si/sub 3/N /sub 4/ whiskers[J],2010, 2010. |
| APA | Weiyou Yang,Zhipeng Xie,Jingjing Li,Hezhuo Miao,Ligong Zhang,&Linan Zn.(2010).Growth of platelike and branched single-crystalline Si/sub 3/N /sub 4/ whiskers.. |
| MLA | Weiyou Yang,et al."Growth of platelike and branched single-crystalline Si/sub 3/N /sub 4/ whiskers".(2010). |
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