X-ray topo-tomography of large HPHT synthetic diamonds
- Авторлар: Zolotov D.A.1, Buzmakov A.V.1, Khokhryakov A.F.2, Borzdov Y.M.2, Yagudin L.D.3, Palyanov Y.N.2, Dyachkova I.G.1, Asadchikov V.E.1, Shiryaev A.A.3
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Мекемелер:
- Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
- Sobolev Institute of Geology and Mineralogy, SB RAS
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Шығарылым: Том 70, № 4 (2025)
- Беттер: 565-576
- Бөлім: REAL STRUCTURE OF CRYSTALS
- URL: https://bakhtiniada.ru/0023-4761/article/view/306264
- DOI: https://doi.org/10.31857/S0023476125040042
- EDN: https://elibrary.ru/jfnrdp
- ID: 306264
Дәйексөз келтіру
Аннотация
Extended defects in large synthetic diamonds grown at high pressures and high temperatures (HPHT) using thermal gradient method were studied by X-ray topo-tomography with a laboratory setup. It is shown that temperature and growth rate are the principal factors influencing crystalline quality of the diamonds. Synthesis at high temperatures and low rate allows growth of single crystals with low density of dislocations, stacking faults and microtwin lamellae. Annihilation kinetics of the extended defects during annealing at high pressure implies important role of vacancies diffusion. The annihilation of such defects leads to formation of perfect dislocations.
Авторлар туралы
D. Zolotov
Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
Email: a_shiryaev@mail.ru
Ресей, Moscow, 119333
A. Buzmakov
Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
Email: a_shiryaev@mail.ru
Ресей, Moscow, 119333
A. Khokhryakov
Sobolev Institute of Geology and Mineralogy, SB RAS
Email: a_shiryaev@mail.ru
Novosibirsk
Y. Borzdov
Sobolev Institute of Geology and Mineralogy, SB RAS
Email: a_shiryaev@mail.ru
Ресей, Novosibirsk
L. Yagudin
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: a_shiryaev@mail.ru
Ресей, Moscow
Y. Palyanov
Sobolev Institute of Geology and Mineralogy, SB RAS
Email: a_shiryaev@mail.ru
Ресей, Novosibirsk
I. Dyachkova
Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
Email: a_shiryaev@mail.ru
Ресей, Moscow, 119333
V. Asadchikov
Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
Email: a_shiryaev@mail.ru
Ресей, Moscow, 119333
A. Shiryaev
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: a_shiryaev@mail.ru
Ресей, Moscow
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