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Investigation of Microdiamonds Obtained by the Oxygen-Acetylene Torch Method

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Title: Investigation of Microdiamonds Obtained by the Oxygen-Acetylene Torch Method
Authors: B. Z. Mansurov, B. S. Medyanova, A. K. Kenzhegulov, G. Partizan, B. Zhumadilov, M. E. Mansurova, U. P. Koztayeva, B.T. Lesbayev
Source: Eurasian Chemico-Technological Journal, Vol 19, Iss 2, Pp 163-167 (2017)
Publisher Information: al-Farabi Kazakh National University, 2017.
Publication Year: 2017
Collection: LCC:Chemistry
Subject Terms: Chemistry, QD1-999
More Details: The results of experiments on the synthesis of micro- and nano-diamonds by an oxy-acetylene torch on the surface of the pre-deposited copper thin films are presented in this article. The influence of thickness of a buffer copper film andthe ratio of the concentrations of oxygen and acetylene on the structure of the deposited samples has been studied in the course of the conducted experiments. The studies by Raman scattering and scanning electron microscopy showed that the synthesis of micro- and nano-diamonds occurs under certain experimental conditions. From the results of the analysis of the obtained samples by the methods of Raman scattering and scanning electron microscopy, it was determined that the deposition time of the copper films and consequently its thickness mainly influence on the structure formation of diamond crystals. On copper films grown for 30 min, the Raman scattering method showed a shift of the diamond peak from the standard (1332 cm‒1) to the low-frequency band (1331.3 cm‒1), which may occur after the presence of stress in the crystals. The results of the investigation showed that with increasing of synthesis time take place smoothing of the facets of crystallites (scanning electron microscopy) and decrease in intensity of the diamond peaks (Raman scattering method).
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1562-3920
2522-4867
Relation: http://ect-journal.kz/index.php/ectj/article/view/119; https://doaj.org/toc/1562-3920; https://doaj.org/toc/2522-4867
DOI: 10.18321/ectj647
Access URL: https://doaj.org/article/cdbfa267a1ba4d198040d1c3c028f765
Accession Number: edsdoj.bfa267a1ba4d198040d1c3c028f765
Database: Directory of Open Access Journals
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  Data: Investigation of Microdiamonds Obtained by the Oxygen-Acetylene Torch Method
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  Data: <searchLink fieldCode="AR" term="%22B%2E+Z%2E+Mansurov%22">B. Z. Mansurov</searchLink><br /><searchLink fieldCode="AR" term="%22B%2E+S%2E+Medyanova%22">B. S. Medyanova</searchLink><br /><searchLink fieldCode="AR" term="%22A%2E+K%2E+Kenzhegulov%22">A. K. Kenzhegulov</searchLink><br /><searchLink fieldCode="AR" term="%22G%2E+Partizan%22">G. Partizan</searchLink><br /><searchLink fieldCode="AR" term="%22B%2E+Zhumadilov%22">B. Zhumadilov</searchLink><br /><searchLink fieldCode="AR" term="%22M%2E+E%2E+Mansurova%22">M. E. Mansurova</searchLink><br /><searchLink fieldCode="AR" term="%22U%2E+P%2E+Koztayeva%22">U. P. Koztayeva</searchLink><br /><searchLink fieldCode="AR" term="%22B%2ET%2E+Lesbayev%22">B.T. Lesbayev</searchLink>
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  Data: Eurasian Chemico-Technological Journal, Vol 19, Iss 2, Pp 163-167 (2017)
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  Data: The results of experiments on the synthesis of micro- and nano-diamonds by an oxy-acetylene torch on the surface of the pre-deposited copper thin films are presented in this article. The influence of thickness of a buffer copper film andthe ratio of the concentrations of oxygen and acetylene on the structure of the deposited samples has been studied in the course of the conducted experiments. The studies by Raman scattering and scanning electron microscopy showed that the synthesis of micro- and nano-diamonds occurs under certain experimental conditions. From the results of the analysis of the obtained samples by the methods of Raman scattering and scanning electron microscopy, it was determined that the deposition time of the copper films and consequently its thickness mainly influence on the structure formation of diamond crystals. On copper films grown for 30 min, the Raman scattering method showed a shift of the diamond peak from the standard (1332 cm‒1) to the low-frequency band (1331.3 cm‒1), which may occur after the presence of stress in the crystals. The results of the investigation showed that with increasing of synthesis time take place smoothing of the facets of crystallites (scanning electron microscopy) and decrease in intensity of the diamond peaks (Raman scattering method).
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  Data: http://ect-journal.kz/index.php/ectj/article/view/119; https://doaj.org/toc/1562-3920; https://doaj.org/toc/2522-4867
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