Effects of Mg on diamond growth and properties in Fe–C system under high pressure and high temperature condition

Diamond crystal crystallized in Fe–Mg–C system with Archimedes buoyancy as a driving force is established under high pressure and high temperature conditions. The experimental results indicate that the addition of the Mg element results in the nitrogen concentration increasing from 87 ppm to 271 ppm...

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Published inChinese physics B Vol. 25; no. 8; pp. 417 - 420
Main Author 黄国锋 郑友进 李战厂 高强 马卓 史思明 姜宝钢 赵赫
Format Journal Article
LanguageEnglish
Published 01.08.2016
Subjects
Buoyancy
Crystallization
Crystals
Diamonds
Driving conditions
Nitrogen
Planes
Spectra
性能
显微拉曼光谱
金刚石晶体
金刚石生长
镁
高压
高温条件
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Summary:Diamond crystal crystallized in Fe–Mg–C system with Archimedes buoyancy as a driving force is established under high pressure and high temperature conditions. The experimental results indicate that the addition of the Mg element results in the nitrogen concentration increasing from 87 ppm to 271 ppm in the diamond structure. The occurrence of the {100}plane reveals that the surface character is remarkably changed due to the addition of Mg. Micro-Raman spectra indicate that the half width of full maximum is in a range of 3.01 cm^-1–3.26 cm^-1, implying an extremely good quality of diamond specimens in crystallization.
Bibliography:Guo-Feng Huang, You-Jin Zheng, Zhan-Chang Li, Qiang Gao, Zhuo Ma, Si-Ming Shi, Bao-Gang Jiang, He Zhao（1Inor Mongolia Key Laboratory of High-pressure Phase Functional Materials, Chifeng University, Chifeng 024000, China;2Laboratory of Superhard Materials, Mudanjiang Normal College, Mudanjiang 157011, China）
Diamond crystal crystallized in Fe–Mg–C system with Archimedes buoyancy as a driving force is established under high pressure and high temperature conditions. The experimental results indicate that the addition of the Mg element results in the nitrogen concentration increasing from 87 ppm to 271 ppm in the diamond structure. The occurrence of the {100}plane reveals that the surface character is remarkably changed due to the addition of Mg. Micro-Raman spectra indicate that the half width of full maximum is in a range of 3.01 cm^-1–3.26 cm^-1, implying an extremely good quality of diamond specimens in crystallization.
high pressure and high temperature, Archimedes buoyancy process, diamond crystal, Mg metal
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/8/088104