ДОСКОНАЛІСТЬ ГРАННИХ ФОРМ НРНТ-МОНОКРИСТАЛІВ АЛМАЗУ В ЗАЛЕЖНОСТІ ВІД РІВНЯ ПЕРЕСИЧЕННЯ ВУГЛЕЦЕМ РОСТОВОГО СЕРЕДОВИЩА
The peculiarities of solution-melt crystallization in metal-carbon growth systems of large diamond single crystals weighing up to 15 carats at a pressure of 5.8-6.2 GPa and a temperature of 1300-1550 ℃ were investigated with the obtained polyhedral growth forms during growth cycles of up to 220 hour...
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| Date: | 2024 |
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| Main Authors: | , , , , , , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины
2024
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| Subjects: | |
| Online Access: | http://altis-ism.org.ua/index.php/ALTIS/article/view/347 |
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| Journal Title: | Tooling materials science |
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Tooling materials science| Summary: | The peculiarities of solution-melt crystallization in metal-carbon growth systems of large diamond single crystals weighing up to 15 carats at a pressure of 5.8-6.2 GPa and a temperature of 1300-1550 ℃ were investigated with the obtained polyhedral growth forms during growth cycles of up to 220 hours. Carbon concentration changes in the growth value on different growth stages in metal solvents based on Fe-Co-C was been studied. Also, influence carbon saturation changes on the habit and faces morphology of grown diamond single crystals were investigated. The main requirements for the last value of the supersaturation value are formulated to ensure the growth conditions of faceted diamond single crystals under the condition of maintaining the development and preservation of the perfect {111} and {113} facet forms. |
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