| A New Dopant of NaN3 for High-Concentration-Nitrogen Diamond Synthesized by HPHT |
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| 作者姓名： | 梁中翥 贾晓鹏 神田久生 马红安 汪东梅 刘万强 于润泽 |
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| 作者单位： | [1]National Lab of Superhard Materials, Jilin University, Changchun 130012 [2]National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan [3]Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 50572032. |
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| 摘 要： | Nitrogen is successfully doped in diamond by adding sodium azide （NaN3 ） as the source of nitrogen to the graphite and iron powders. The diamond crystals with high nitrogen concentration, 1000-2200ppm, which contain the same concentrations of nitrogen with natural diamond, have been synthesized by using the system of iron-carbon- additive NAN3. The nitrogen concentrations in diamond increase with the increasing content of NAN3. When the content of NaN3 is increased to 0.7-1.3 wt. %, the nitrogen concentration in the diamond almost remains in a nitrogen concentration range from 1250ppm to 2200ppm, which is the highest value and several times higher than that in the diamond synthesized by a conventional method without additive NaN3 under high pressure and high temperature （HPHT） conditions.
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| 关 键 词： | NaN3 金刚石 高浓度氮 掺杂 |
| 收稿时间： | 2006-7-5 |
| 修稿时间： | 2006-07-05 |
A New Dopant of NaN3 for High-Concentration-Nitrogen Diamond Synthesized by HPHT |
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| LIANG Zhong-Zhu,JIA Xiao-Peng,Hisao Kanda,MA Hong-An,WANG Dong-Mei,LIU Wan-Qiang,YU Run-Ze.A New Dopant of NaN3 for High-Concentration-Nitrogen Diamond Synthesized by HPHT[J].Chinese Physics Letters,2007,24(2):559-562. |
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| Authors: | LIANG Zhong-Zhu JIA Xiao-Peng Hisao Kanda MA Hong-An WANG Dong-Mei LIU Wan-Qiang YU Run-Ze |
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| Institution: | 1National Lab of Superhard Materials, Jilin University, Changchun 130012; 2National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan ;3 Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 |
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| Abstract: | Nitrogen is successfully doped in diamond by adding sodium azide (NaN3) as the source of nitrogen to the graphite and iron powders. The diamond crystals with high nitrogen concentration, 1000--2200ppm, which contain the same concentrations of nitrogen with natural diamond, have been synthesized by using the system of iron-carbon-additive NaN3. The nitrogen concentrations in diamond increase with the increasing content of NaN3. When the content of NaN3 is increased to 0.7--1.3wt.%, the nitrogen concentration in the diamond almost remains in a nitrogen concentration range from 1250ppm to 2200ppm, which is the highest value and several times higher than that in the diamond synthesized by a conventional method without additive NaN3 under high pressure and high temperature (HPHT) conditions. |
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| Keywords: | 81 05 Uw 81 10 Aj 61 72 Ss 85 40 Ry |
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