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Был вчера в 21:42

Кандидат

Мужчина, 42 года, родился 27 августа 1982

Рассматривает предложения

Санкт-Петербург, готов к переезду (Австралия, Москва, Япония), готов к командировкам

Technologist / Researcher

Специализации:
  • Научный специалист, исследователь

Занятость: полная занятость

График работы: полный день

Опыт работы 22 года 2 месяца

Октябрь 2023по настоящее время
1 год 10 месяцев
General Synthetic Research Ltd.

Санкт-Петербург, gsrltd.ru/

R&D Manager
Development of diamonds growth technologies as well the use of diamonds as prospective materials.
Январь 2024Октябрь 2024
10 месяцев
Hyoungminsa gemstones
Short-time project
Development and implementation of technology of natural sapphires high-temperature treatment under pressure. The following results were achieved: - Basic technology of sapphires treatment (temperature 1800 oC, pressure 4 GPa, processing time 20 minutes) on on split-sphere type press (BARS-300) was created and verified. - The customer's employees were trained in the necessary technological operations to carry out the sapphires treatment process and maintain the equipment. - Auxiliary equipment necessary for the sapphires treatment process (presses, drying cabinets, visualization system, etc.) was selected and implemented.
Ноябрь 2009Сентябрь 2023
13 лет 11 месяцев
Sintez LLC
Head Technologist/Head of R&D Dept.
Support and development of technology for production of diamond single crystals by TG HPHT (temperature gradient at high-pressure high-temperature) method. 1. Development of technology for obtaining diamond single crystals by HPHT method: - increasing the size of synthetic diamond crystals by changing the growth assembly; - determination of growth parameters to control morphology (octahedron predominance) and color (colorless, yellow, greenish-yellow, light blue - vivid blue, pink) of synthetic diamond crystals; - search and implementation of new materials (pressure transmitting material, heater insulation, thermal gates material, etc.); - development of new solvent metals and production of probe quantities by vacuum induction melting; - modeling of growth processes of single crystals by Salome/Netgen/Elmer/Paraview/ANSYS CFX programs; - development of technical specifications for equipment manufacturers (for heating, cooling, control systems, etc.); - development of growth assemblies of various types, including those for thermobaric treatment of diamond crystals; 2. Support of the technology of diamond single crystals production by HPHT method: - Development and implementation of technological charts for the production of parts of the growth assembly; - development of control points in the production of parts of the growth assembly; - analyzing the causes of rejects and developing recommendations for their elimination; - search for material suppliers and equipment manufacturers; - incoming material control; - development and implementation of recycling of waste materials for the production of parts for - Developing and implementing recycling of waste materials for reuse; - creating a procurement plan and equipment start-up plan; Key achievements: - the size of synthetic diamond crystals obtained on split-sphere type press BARS-300 was increased from 1 to 3.5 ct with the prospect of obtaining crystals of 5 ct in size (the maximum size achieved was 4.96 ct, with a diameter of the growth zone of 11 mm) through the development of new growth assemblies; - the stability of equipment operation and the quality of obtained crystals were increased by changing the components of control systems (heating, control); - a new heating system was introduced to increase the crystal growth rate while maintaining the quality; - the materials used and their suppliers were revised, that allowed increasing the stability and reproducibility of growth processes and, as a result, the quality of obtained crystals; - growth assemblies for obtaining crystals of different colors (pink, greenish-yellow, light blue - vivid blue, colorless) were developed and introduced both on BARS and Chinese cubic presses; - the composition of solvent metal was optimized to reduce the concentration of impurities in crystals; - an assembly for color modification of diamond crystals by thermobaric annealing on BARS-type units was developed and implemented; - technology of organic materials processing for obtaining initial components for crystal growth was developed and implemented; - technology for recycling of waste materials was developed and implemented, which reduced their consumption from 3 to 8 times (depending on the material); - a growth assembly for simultaneous growth of 12 diamond crystals on a Chinese cubic press was developed on the basis of computational models; - a multilevel growth assembly for growing diamond crystals on a Chinese cubic press was developed on the basis of computational models; - technology of synthetic diamond crystals growing in assembly with a diameter of 42 mm with obtaining from 9 (size from 2.5 to 10 ct) to 12 (size from 1.5 to 5 ct) crystals on a Chinese cubic press was developed and implemented. - The technology of single crystals production from barium carbonate enriched with 14C was developed (patent obtained) and single crystals doped with 14C characterized by self-luminescence sufficient for current generation by a photocell were successfully grown.
Июнь 2003Декабрь 2018
15 лет 7 месяцев
St.Petersburg State University, Crystallography dept.

Образовательные учреждения... Показать еще

Senior Researcher
Investigation of crystal growth peculiarities, development of crystal growth methods, characterization of crystal properties, numerical modeling of crystal growth. Probations: The Key State Laboratory of Solid State Microstructures, Nanjing University (Nanjing, China). Project: Electrodeposition of high ordered submicro- and nano dendritic crystals of silver. Crystallography section, Department of Earth- and Environmental Sciences, Ludwig-Maximilians University (Munich, Germany). Project: Extreme behavior of growing crystals under conditions of solution structure transformations: new experimental approach to crystal growth mechanism. Awards and personal grants: 1. Prof. Kessler scholarship by Saint-Petersburg Society of Naturalists (2005); 2. Scholarship by Saint-Petersburg Administration (2006, 2005, 2003, 2002); 3. Scholarship by International Soros Science Education Program (2004, 2003); 4. RFBR fellowship for young scientist and students (2003); 5. INTAS Young Scientists Fellowship, 2006-2008. Granted projects (team leader): Grant of the President of Russian Federation for young scientists (МК-442.2009.5). Project: Mixed crystals as perspective materials: chemical composition, imperfection, synthesis methods. Grant of Russian Foundation for Basic Research (13-05-12053). Project: Peculiarities of chemical composition and defects distribution at bulk of mixed crystals of different isomorphic types in dependence on crystallization conditions. Grant of Russian Foundation for Basic Research (16-29-11727). Project: Research of formation problems and development of approaches to growth of isomorphic-mixed monocrystals as basement for optical elements with pre-defined properties Granted projects (team member): 1. INTAS grant 99-0247 (“Polymineral and mixed crystal formation from solution: an experimental and theoretical study of the origin of natural and synthetic crystals”) 2. Russian Fund for Basic Research, grants 01-05-64912, 04-05-64416, 07-05-00380, 10-02-01303, 12-05-00876, 16-05-00837 and 19-05-00413 devoted to mixed crystal formation. 3. Russian Science Foundation, project # 16-17-10085. 4. State contract 02.523.12.2004 (project DN-08/07-03) devoted to development of doping methods of hexa-hydrate sulfates of transition metals for UV-filters. Publications: 1. S.N. Bocharov, A.E. Glikin, E.V. Kir'yanova, V.V. Sipyagin. Anomalies of growth rates and habit of sodium chlorate crystals // Zap. Vseross. Mineral. O–va. 2003. v.123, No. 2. pp.99-107. [in Russian] 2. S.N. Bocharov. Kinetic anomalies of crystal growth as evidence of solution structure transitions // Bull. S.-Peterb. Univ., Ser. 7: Geol., Geogr. 2004. No 23, pp.16-21. [in Russian] 3. S.N. Bocharov. Kinetic anomalies of crystal growth // Bull. S.-Peterb. Univ., Ser. 7: Geol., Geogr. 2005. No 24, pp.88-90. [in Russian] 4. S.N. Bocharov, A.E. Glikin. Kinetic anomalies of crystal growth: extension of methodical approaches and interpretations // Crystallography Reports. 2008. v. 53, No. 1, pp. 147–153. 5. S. N. Bocharov, P. Gille, A. E. Glikin. Kinetic anomalies of mixed crystal growth and their effect on the crystal isomorphic composition // Cryst. Res. Technol. 2009. v. 44, No. 1, pp. 13 – 18. 6. Malakhova L.F., Alekseeva O.A., Furmanova N.G., Bocharov S.N., Kryuchkova L.Yu. Crystal structure of octapotassium octasulfatodiceriate pentahydrate // Crystallography Reports. 2010. v. 55, N. 2, pp. 206–209. 7. S.N. Bocharov. Anomalies of growth rate and variations of isomorphic composition on the example of NaClO3-NaBrO3 model system // Proceedings of RMS. 2010. N. 3, pp. 122-131. [in Russian] 8. Pyankova L.A., Bocharov S.N., Shtukenberg A.G., Punin Yu.O., Bakhvalov A.S., Franke V.D. Distribution of syntactic intergrowths over heterophase NH4Cl:(Mn2+,Сu2+) crystals as studied by a complex of experimental techniques. // Bull. of St.Petersburg State University. Ser. 7: Geol., Geogr. 2011. Vol. 1. pp.45-53. [in Russian] 9. Bocharov S. Kinetic anomalies of crystal growth: object, novelty and implication // Acta Cryst. 2011. A67, P. C87. 10. Pyankova L.A., Punin Yu.O., Bocharov S.N., and Shtukenberg A.G. Growth Kinetics and micromorphology of NH4Cl:Mn2+ crystals formed in the NH4Cl–MnCl2–H2O–CONH3 system // Crystallography Reports. 2012. v. 57, No.2, pp. 317–326. 11. Bocharov S.N., Pyankova L.A.. X-Ray Microtomographic Study of an Admixture Distribution within the Volume of Heterophase Crystals (NH4Cl:Mn) // Proceedings of 21st International Workshop on Industrial Crystallization. 2014. 311-319. 12. Kryuchkova L.Yu., Bocharov S.N.. Composition Inhomogeneity of Mixed Crystals // Proceedings of 21st International Workshop on Industrial Crystallization. 2014. 320-327. 13. Tibilov I. V., Bocharov S. N., Glikin A. E., Antonov A. A., Plotkina Ju.V. About authigenic nature of small cassiterite pebbles in alluvial placers of Chukotka // Proceedings of RMS. 2015. N. 1, pp. 122-133. [in Russian] 14. Isakov A.I., Kotelnikova E.N., Muenzberg S., Bocharov S.N., Lorenz H. Solid phases in the system l-valine - l-isoleucine // Crystal Growth and Design. 2016, N. 5, pp. 2653-2661. 15. Zadoya A.I., Siidra O.I., Bubnova R.S., Nazarchuk E.V., Bocharov S.N. Tellurites of Hexavalent Uranium: First Observation of Polymerized (UO4)2–Tetraoxido Cores // European Journal of Inorganic Chemistry. 2016, N. 25, pp. 4083-4089. 16. Isakov A.I., Kotelnikova E.N., Bocharov S.N., Zolotarev Jr. A.A., Lorenz H. Thermal deformations of the crystal structures of L-valine, L-isoleucine and discrete compound V2I // Industrial Crystallization, ed. H. Lorenz and H. Buchholz, Cuvillier Verlag, Gottingen, Germany. 2016. P. 7–12. 17. Bocharov S.N., Kryuchkova L.Yu., Saveliev S.O.. Approaches to growing large mixed monocrystals in NH4H2PO4—KH2PO4 system // Industrial Crystallization, ed. H. Lorenz and H. Buchholz, Cuvillier Verlag, Gottingen, Germany, 2016, p. 252-258. 18. Siidra O., Nazarchuk E., Bocharov S., Depmeier W., Zadoya A. Formation of co-racemic uranyl chromate constructed from chiral layers of different topology // ActaCryst. 2017, B73, pp. 101–111. 19. Siidra O., Nazarchuk E., Bocharov S., Depmeier W., Kayukov R. Microporous uranyl chromates successively formed by evaporation from acidic solution // Zeitschrift für Kristallographie - Crystalline Materials. 2018, pp. 1-9. 20. Siidra O., Nazarchuk E., Charkin D., Chukanov N., Depmeier W., Bocharov S. and Sharikov M. Uranyl Sulfate Nanotubules Templated by N-phenylglycine // Nanomaterials. 2018, 8, 216; doi:10.3390/nano8040216. 21. Kryuchkova L.Yu., Lorenz H., Zolotarev A. A. Jr , Bocharov S.N., Kotelnikova E.N.. Solid phases in the chiral phenylglycine system according to PXRD and SCXRD data // Industrial Crystallization, ed. Cartigny and N. Couvra. Presses of University of Rouen, France. 2018. P. 226-231. 22. Bocharov S.N., Kryuchkova L.Yu., Vikharev A.E. Growth of large mixed single crystals in the NaI-NaBr-H2O system // Industrial Crystallization, ed. Cartigny and N. Couvra. Presses of University of Rouen, France. 2018. P. 162-167. 23. Bocharov S.N., Kryuchkova L.Yu., Vikharev A.E. Growing large mixed single crystals in the NH4I-KI-H2O system // Industrial Crystallization, ed. A.Flood and L.Wantha. Vidyasirimedhi Institute of Science and Technology, Thailand. 2019. P. 100-105. 24. Kotelnikova E., Isakov A., Kryuchkova L., Zolotarev A., Bocharov S., Lorenz H.. Acids with Chiral Molecules as Essential Organic Compounds of Biogenic–Abiogenic Systems // Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature. Springer. 2020. pp.695-719. 25. Bocharov S.N., Isakov A.I., Petrov Yu.Yu., Orekhova K.N., Dementeva E.V., Burakov B.E., Zamoryanskaya M.V. Study of radioluminescence and cathodoluminescence of artificial diamond single crystals as prospective durable core material for nuclear electric batteries // Diamond and Related Materials. 2021. V.120. 108658 doi.:10.1016/j.diamond.2021.108658 26. Bocharov S.N., Burakov B.E., Isakov A.I., Orekhova K.N, Dementeva E.V., Zamoryanskaya M.V., Dementev P.A., Ber D.Y., Kasantsev D.Yu., Tokarev M.V., Petrov Yu.Yu. Self-glowing single crystal diamond activated with carbon-14: First synthesis and characterization // Diamond and Related Materials, 2024, 141, 110650. also more than 80 abstracts at different Russian and International conferences.

Навыки

Уровни владения навыками
crystal growth
FEA/FEM
AFM
XRPD
UV-VIS
SEM
Analytical skills
monocrystal
optical microscopy
scientific research
HPHT
solution in melt
mixed crystals
Production Planning
Product Development
Mathematical Modeling
growth from solutions

Обо мне

I am knowledgeable in various methods of crystal growth (from solutions, including solution in melt; electrocrystallization; growth in multicomponent systems; growth from melt) and analysis (optical microscopy, AFM, XRPD, UV-VIS spectroscopy, XRmT, SEM) of crystals. I am quickly learn new equipment, techniques and software.

Портфолио

Высшее образование (Кандидат наук)

2008
St.Petersburg State University
Crystallography dept., Crystallography

Знание языков

РусскийРодной


АнглийскийB2 — Средне-продвинутый


Гражданство, время в пути до работы

Гражданство: Россия

Разрешение на работу: Россия

Желательное время в пути до работы: Не имеет значения