Development of diamond single crystal growth method on seed under high pressure and high temperature by convectional carbon mass transfer effect using
According to the materials of report at the meeting of the Presidium of the NAS of Ukraine, March 11, 2026
DOI:
https://doi.org/10.15407/visn2026.06.059Keywords:
diamond single crystal, thermogravitational convection, high pressure apparatus, HPHT.Abstract
Processes of thermogravitational convective carbon mass transfer under ultrahigh pressures and temperatures were investigated using computer modeling methods during diamond single crystals growth process weighing up to 30 carats and dimensions up to 25 mm. It was found that the creation and maintenance of dissolved carbon concentration at the crystallization front within 15—22 wt. % is possible through the use of stimulated convective flows as a one of mass transfer method. To create effective convection field is need to use radial and axial temperature gradients within 0.5—1.5 ℃/mm to 14—20 ℃/mm, respectively.
Cite this article:
Burchenia A.V. Development of diamond single crystal growth method on seed under high pressure and high temperature by convectional carbon mass transfer effect using (according to the materials of report at the meeting of the Presidium of the NAS of Ukraine, March 11, 2026). Visn. Nac. Akad. Nauk Ukr. 2026. (6): 59—66. https://doi.org/10.15407/visn2026.06.059
References
Duong A.T., Nguyen T.T.H., Nguyen T.M.H., Pham A.T., Dinh T.M.H., Sunglae C. Temperature gradient: a simple method for single crystal growth. VNU Journal of Science: Mathematics – Physics. 2019. 35(1): 41—46. https://doi.org/10.25073/2588-1124/vnumap.4311
Li X., Perkins J., Collazo R., Nemanich R.J., Sitar Z. Investigation of the effect of the total pressure and methane concentration on the growth rate and quality of diamond thin films grown by MPCVD. Diamond and Related Materials. 2006. 15(11–12): 1784—1788. https://doi.org/10.1016/j.diamond.2006.09.00
Liberman R.C. Multi-anvil, high pressure apparatus: a half-century of development and progress. High Pressure Research. 2011. 31(4): 493—532. https://doi.org/10.1080/08957959.2011.618698
Li Z.-C., Jia X.-P., Huang G.-F., Hu M.-H., Li Y., Yan B.-M., Ma H.-A. FEM simulations and experimental studies of the temperature field in a large diamond crystal growth cell. Chinese Physics B. 2013. 22(1): 014701. https://doi.org/10.1088/1674-1056/22/1/014701
Burchenia A.V. Directional control of growth parameters for growing of structurally perfect diamond type Ib single crystals of weighing 5 to 10 carats in six-anvil apparatus. Ph.D. (Engin.) Thesis. Kyiv, 2019 [in Ukrainian].
Heiland H.G., Wozniak G., Wozniak K. Flow and temperature field measurements of thermal convection in small vertical gap using liquid crystals. Heat and Mass Transfer. 2007. 43: 863—870. https://doi.org/10.1007/s00231-006-0165-z
Chaskalovic J. Finite Element Methods for Engineering Science. Springer Berlin, Heidelberg, 2008. https://doi.org/10.1007/978-3-540-76343-7
Yurudu C., Jones J.M., Ulrich J. Modeling of diffusion for crystal growth. Soft Materials. 2012. 10(3): 257—284. https://doi.org/10.1080/1539445X.2011.599715
Askeland D.R. The Science and Engineering of Materials. Springer New York, 2013. https://doi.org/10.1007/978-1-4613-0443-2
Grimvall G. Thermophysical Properties of Materials. Elsevier Science, 1999. https://doi.org/10.1016/B978-0-444-82794-4.X5000-1
Savitskyi O.V., Lysakovskyi V.V., Bovsunivskyi O.V. Resistance of graphite materials under high pressure and high temperature. Tooling Materials Science. 2019. 22: 299—304 [in Ukrainian].
