| 高温高压下碳纳米管的相转变及金刚石的合成 |
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| 引用本文： | 曹立民,张明,张湘义,高春晓,周镇华,张君,戴道阳,孙力玲,王文魁. 高温高压下碳纳米管的相转变及金刚石的合成[J]. 高压物理学报, 2000, 14(1): 33-36 |
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| 作者姓名： | 曹立民 张明 张湘义 高春晓 周镇华 张君 戴道阳 孙力玲 王文魁 |
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| 作者单位： | 1. 中国科学院物理研究所,北京,100080
2. 燕山大学,秦皇岛,066004;中国科学院物理研究所,北京,100080 |
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| 摘 要： | 利用透射电子显微镜（TEM）和扫描电子显微镜（SEM）研究了碳纳米管在高压高温下的相转变。研究发现在高压高温条件下碳纳米管是不稳定的，在5.5 GPa压力下，770 ℃到950 ℃间退火时碳纳米管趋向形成碳纳米葱。在5 GPa、1 000 ℃条件下合成了金刚石。
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| 关 键 词： | 碳纳米管 高压高温 碳纳米葱 金刚石 |
| 文章编号： | 1000-5773（2000）01-0033-04 |
| 收稿时间： | 1999-05-10; |
| 修稿时间： | 1999-05-10 |
PHASE TRANSITION AND DIAMOND SYNTHESIS OF CARBON NANOTUBES UNDER HIGH PRESSURE AND HIGH TEMPERATURE |
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| CAO Li-min,ZHANG Ming,ZHANG Xiang-yi,GAO Chun-xiao,ZHOU Zhen-hua,ZHANG Jun,DAI Dao-yang,SUN Li-ling,WANG Wen-kui. PHASE TRANSITION AND DIAMOND SYNTHESIS OF CARBON NANOTUBES UNDER HIGH PRESSURE AND HIGH TEMPERATURE[J]. Chinese Journal of High Pressure Physics, 2000, 14(1): 33-36 |
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| Authors: | CAO Li-min ZHANG Ming ZHANG Xiang-yi GAO Chun-xiao ZHOU Zhen-hua ZHANG Jun DAI Dao-yang SUN Li-ling WANG Wen-kui |
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| Affiliation: | 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China;2. Yanshan University, Qinhuangdao 066004, China |
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| Abstract: | The phase transition of carbon nanotubes under high pressure and high temperature has been investigated by transmission electron microscope and scanning electron microscope. It is found that the nanotubes are unstable under high pressure and high temperature. When being annealed at the temperature range of 770 ℃ and 950 ℃ under 5.5 GPa, the carbon nanotubes will transform into carbon onions. The diamond is synthesized under the conditions of 1 000 ℃ and 5.0 GPa.The mechanism of the phase transition of carbon nanotubes is well discussed. |
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| Keywords: | nanotubes high pressure and high temperature carbon onions diamond |
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