| 有机前驱体热解合成Si3N4纳米带及其生长机制的研究 |
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| 引用本文： | 谢志鹏 杨为佑 王华涛 刘国全 苗赫濯 Linan An. 有机前驱体热解合成Si3N4纳米带及其生长机制的研究[J]. 稀有金属材料与工程, 2007, 36(A02): 289-292 |
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| 作者姓名： | 谢志鹏 杨为佑 王华涛 刘国全 苗赫濯 Linan An |
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| 作者单位： | [1]清华大学材料系新型陶瓷与精细工艺国家重点实验室,北京100081 [2]宁波工程学院机械学院,浙江宁波516016 [3]Advanced Materials Processing and Analysis Center, University of Central Florida, 32826, Orlando, USA |
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| 基金项目： | 国家自然科学基金（No.50372031）,两地基金和高等学校博士点学科专项科研基金资助（No.20050003004） |
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| 摘 要： | 通过催化剂辅助有机前驱体热解，合成了单晶Si3N4纳米带。其工艺主要包括3个步骤：有机前驱体低温交联固化、高能球磨粉碎和高温热解。采用SEM、XRD、EDS、TEM和HRTEM等分析手段对Si3N4纳米带进行了详细的表征，对Si3N4纳米带的生长机制进行了深入的探讨。
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| 关 键 词： | 有机前驱体 热解 SisN4纳米带 固-液-气-固机制 |
| 文章编号： | 1002-185X（2007）S2-289-04 |
| 修稿时间： | 2007-02-25 |
Study on Polymeric Precursor Pyrolysis Synthesis and Growth Mechanism of Si3N4 Nanobelts |
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| Xie Zhipeng, Yang Weiyou, Wang Huataol, Liu Guoquan, Miao Hezhuo, Linan An. Study on Polymeric Precursor Pyrolysis Synthesis and Growth Mechanism of Si3N4 Nanobelts[J]. Rare Metal Materials and Engineering, 2007, 36(A02): 289-292 |
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| Authors: | Xie Zhipeng Yang Weiyou Wang Huataol Liu Guoquan Miao Hezhuo Linan An |
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| Affiliation: | 1. State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China;2. School of Mechanical Engineering, Ningbo University of Technology, Ningbo 315016, China ;3. Advanced Materials Processing and Analysis Center, University of Central Florida, 32826, Orlando, USA |
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| Abstract: | A new method named catalyst-assisted pyrolysis of polymeric precursor to synthesize single-crystalline Si3N4 nanobelts was studied in this current paper. The process of the method contained three main steps such as cross-linking of polymeric precursor at a low temperature, high-energy ball milling and polymer pyrolysis at a high temperature. The as-synthesized nanobelts were detailed characterization by SEM, XRD, EDS, TEM and HRTEM. The growth mechanism for the single-crystalline Si3N4 nanobelts was proposed. |
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| Keywords: | polymeric precursor pyrolysis Si3N4 nanobelts solid-liquid-gas-solid growth mechanism |
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