The effects of thermal treatment and irradiation on the chemical properties of natural diamonds
| العنوان: | The effects of thermal treatment and irradiation on the chemical properties of natural diamonds |
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| المؤلفون: | Ira Litvak, Avner Cahana, Yaakov Anker, Sharon Ruthstein, Haim Cohen |
| المصدر: | Physical Chemistry Chemical Physics. 24:11696-11703 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Nitrogen, Electron Spin Resonance Spectroscopy, General Physics and Astronomy, Diamond, Physical and Theoretical Chemistry, Carbon |
| الوصف: | The modification of nitrogen-contaminated diamonds into color-enhanced diamonds is usually achieved by irradiation and thermal treatment (annealing). These treatments affect nitrogen contamination chemical bonding, vacancy concentration, and atom orientation centers in the diamond lattice. In this study, natural diamonds were subjected to irradiation and thermal annealing color enhancement treatments to produce green, blue, and yellow fancy diamonds. The study followed the changes that occur during treatment relying on visual assessment, fluorescence, UV-vis, FTIR, and EPR spectroscopy to characterize paramagnetic centers. The results indicated that diamonds containing high levels of nitrogen contamination presented a relatively high carbon-centered radical concentration. Two paramagnetic groups with different |
| تدمد: | 1463-9084 1463-9076 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ee5a1b74bd4070d46e877915d3b8732 https://doi.org/10.1039/d2cp00764a |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....3ee5a1b74bd4070d46e877915d3b8732 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14639084 14639076 |
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