Synthesis of large diamond single crystals under high pressure and high temperature through effective utilization of the synthesis cavity
| Autor: | Song Mousheng, Yadong Li, Yong Li, Ying Wang, Xiaozhou Chen, Jie Zhang, She Yanchao |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Analytical chemistry Diamond Infrared spectroscopy Crystal growth 02 engineering and technology General Chemistry Production efficiency engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences symbols.namesake Fourier transform High pressure engineering symbols General Materials Science Fourier transform infrared spectroscopy 0210 nano-technology Raman spectroscopy |
| Zdroj: | CrystEngComm. 20:4127-4132 |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/c8ce00786a |
| Popis: | To make maximal use of the synthesis cavity and improve the production efficiency, we designed the double seed bed method to synthesize large diamond crystals under high pressure and high temperature (HPHT) conditions, and the results were both theoretically calculated and verified by experiments. The theoretical and experimental results were compared with those of the traditional single seed bed method. Furthermore, the obtained diamond crystals were characterized by Raman spectroscopy and Fourier infrared spectroscopy (FTIR). The designed method can shed light on the commercial production of synthetic diamonds. Additionally, the surface defects formed during the crystal growth process were noticed, and the formation mechanism of the {100}-oriented surface defects was discussed. |
| Databáze: | OpenAIRE |
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