სსიპ - ფერდინანდ თავაძის მეტალურგიისა და მასალათმცოდნეობის ინსტიტუტი
LEPL - FERDINAND TAVADZE METALLURGY AND MATERIALS SCIENCE INSTITUTE
№ 1 Boron and Powder Composite Materials Laboratory
Otar Tsagareishvili
Chief Researcher
t_otari@hotmail.com

Date of Birth

04.01.1953

Education

  • 1970-1975 - Georgian Polytechnic Institute Faculty of Metallurgy, Mechanical Engineer;
  • 1976-1979 - Postgraduate study at the Institute of Metallurgy of the GAS, Specialty - Solid State Physics;

Scientific Degree (Rank)

  • PhD / Senior Researcher;

Work Experience

  • 1975-1976 - Scientific-Research Institute of Electric Welding Equipment, Technological Sector, Processing Engineer;
  • 1979-1981 - Institute of Metallurgy of the GAS, Laboratory for Boron, its Alloys and Compounds, Engineer;
  • 1981-1983 - Institute of Metallurgy of the GAS, Laboratory for Boron, its Alloys and Compounds, Junior Researcher;
  • 1983-1998 - Institute of Metallurgy of the GAS, Laboratory for Boron, its Alloys and Compounds, Senior Researcher;
  • 1998-2006 - Institute of Metallurgy of the GAS, Laboratory for Boron, its Alloys and Compounds, Senior Researcher, Head of Laboratory;
  • 2006- 2016 - LEPL – Ferdinand Tavadze Institute of Metallurgy and Materials Science, Laboratory for Boron-containing and composites materials, Chief Scientific Fellow, Head of Laboratory;
  • 2016-present - LEPL Ferdinand Tavadze Institute of Metallurgy and Materials Science, Laboratory for Boron-containing and composites materials, Senior Researcher / Head of Laboratory;

Scientific Interests

  • Obtaining boron and materials on its basis, the study of their structure and physical-mechanical properties;

Papers and Publications

List of Publications: Total number of publications 153, including following in the last years:

  • O. Tsagareishvili , D.Lezhava, M.Tushishvili, L.Gabunia, M.Antadze, L.Kekelidze, T.Dzigrashvili. Some Physical Properties of Compacted Specimens of Highly Dispersed Boron Carbide and Boron Suboxide. J.Solid State Chemistry, 117, (2004), 596-600;
  • A.Gachechiladze, A.Mikeladze, N.Jalabadze, D.Gabunia, O. Tsagareishvili, R.Chedia, M.Antadze.Tungsten carbide based nanocrystalline hard metals. Proceedings of international conference HighMatTech. October 19-23, Kiev, Ukraine, (2009), p.199;
  • A.Gachechiladze , D.Gabunia,A.Mikeladze, O. Tsagareishvili, L.Chkhartishvili. On technological process of synthesis of boron carbide nanodispersive powders. Proceedings of the 4 th International Boron Symposium, 15-17 October, Eskishehir, Turkey, (2009), 67-71;
  • A. A.Gachechiladze, A.Mikeladze, D.L.Gabunia , B.G.Margiev, R.V.Chedia, T.A.Tsuladze, O.Tsagareishvili. Titan carbide based nano-crystalline solid solutions: Production and compacting. J.Nano Studies, 2 , Georgia, (2010), 23-29;
  • M.Antadze, R.Chedia, O.Tsagareishvili, A.Mikeladze, A.Gachechiladze, B.Margiev, D.Gabunia. Metal-Ceramic based on nanostructured boron carbide. Abstract of 17th International Symposium on Boron, Borides and Related Materials Istanbul, Turkey, (2011), p.168;
  • L.S.Chkhartishvili, O.A.Tsagareishvili,, D.L.Gabunia. T.T.Jmukhadze. Nano-Crystalle 10B Powder-Based Neutron Shield Coating Materials. High Mat.Tech.Kiev, (2011), p.270;
  • Mikeladze A.G., Gachechiladze A.A., Margiev B.G., Tsagareishvili O.A. Ceramic-metal based on nanostructured abrasive carbides. Modern Technologies and Methods of Inorganic Materials Science, International Conference Proceedings, Tbilisi, Georgia, June, (2012), 149-160;
  • B.Margiev, R.Chedia, A.Gachechiladze, L. Chkhartishvili,I.Kupreishvili, A.Mikeladze, D.Gabunia, O.Tsagareishvili. Production of nano-crystalline boron nitride by chemical synthesis. 3th International Samsonov Memorial Conference “Materials Sciences of Refractory compounds. Kiev, Ukraine, (2012), p.204;
  • M. Antadze, R. Chedia, O. Tsagareishvili, A. Mikeladze , A. Gacheciladze, B. Margiev, D. Gabunia, T. Tsuladze, D. Khantadze. Metal-Ceramics Based on Nanostructured Boron Carbide. Solid State Sciences, 14 (2012), 1725-1728;
  • L. Chkhartishvili, M.Darchiashvili, A. Gachechiladze, B. Margiev,L.Rukhadze O. Tsagareishvili. Influence of hexagonal boron nitride nanocrystals on wear processes in brass. Nano Studies, 7, (2013), 69-176;
  • L. Chkhartishvili, T. Matcharashvili, R. Esiava, O. Tsagareishvili, D. Gabunia, B. Margiev, A. Gachechiladze. Powdered hexagonal boron nitride reducing nanoscale wear. In: Physics, Chemistry and Application of Nanostructures. Singapore: World Scientific, (2013), 438-440;
  • L.Rukhadze, L. Chkhartishvili. O.Tsagareishvili. An alternative method of obtaining of carbon nanotubes, fibers and magnetic clusters. 3rd International Conference “Nanotechnologies”. Tbilisi, Georgia, (2014), 98-99;
  • D.L Gabunia, O.A.Tsagareishvili, L.S. Chkhartishvili. Influence of producing conditions on structural state of boron crystals. Nano Studies. v.9,Tbilisi, Publ.House Nekeri, (2014), 65-70;
  • L.Rukhadze,L. Chkhartishvili. O.Tsagareishvili. An alternative method of obtaining of carbon nanotubes, fibers and magnetic clusters. Nano Studies. v.9,Tbilisi, Publ.House Nekeri, (2014), 83-87;
  • R.Becker , L.Chkhartishvili,R.Avci, I.Murusidze, O.Tsagareishvili, N.Maisuradze. “Metallic” boron nitride. Eur.Chem.Bull. 4(1). (2015), 8-23;
  • A. Gachechiladze, O.Tsagareishvili, M.Darchiashvili, B. Margiev,L.Rukhadze ,L. Chkhartishvili. Antifrictional metallic materials modified with hexagonal boron nitride. Proceedings of II International Conference-Modern Technologies and Methods of Inorganic Materials Science. Tbilisi, (2015), 121-131;
  • A. Gachechiladze, O.Tsagareishvili, M.Darchiashvili, B. Margiev, L.Rukhadze ,L. Chkhartishvili. New nanoalloys for modifying the steel. Proceedings of II International Conference-Modern Technologies and Methods of Inorganic Materials Science. Tbilisi, (2015), 228-231;
  • Т.А.Бацикадзе, Д.Л.Габуния, В.М.Габуния, Т.Г.Гигитащвили, О.А.Цагарейшвили , Л.С.Чхартишвили. Получение бора и карбида бора в электрической дуге. Proceedings of the Georgian National Academy of Science – Chemical Series,v.41,#1, (2015), 144-148;
  • L. Chkhartishvili , O. Tsagareishvili, G. Tavadze. Neutron detectors based on 10B-containing nanomaterials. NATO Sci. Peace & Sec. Ser. B: Phys. & Biophys. – Nuclear Radiation Nanosensors and Nanosensory Systems (Eds. P. J. Kervalishvili, P. H. Yannakopoulos), Dordrecht, Springer Science + Business Media Dordrecht. (2016), Ch.12 – 187-196;

Inventions ( Copyright Certificates, Patents)

  • Charge for obtaining a ceramic composite material TiB2–Al2O3. G. Tavadze, O. Okrostsvaridze, A. Khvadagiani, K. Lekishvili, O. Tsagareishvili, G. Tsagareishvili. Sakpatenti, Georgia, Patent # 858, 29.01.1997;
  • Charge for obtaining a ceramic composite material – B4C–Al2O3–TiC. A. Khvadagiani, O. Tsagareishvili, G. Tavadze, K. Lekishvili, L. Tavadze, O. Tsagareishvili. Sakpatenti, Georgia, Patent #733, 11.09.1997;
  • Method of producing a boron carbide articles. T. Abzianidze, G. Karumidze, L. Kekelidze, Lebanidze, O. Tsagareishvili, L. Shengelia. Sakpatenti, Georgia, Patent P.25–15, 1999.06;

Participation in Scientific Symposiums and Conferences

  • International Conference HighMatTech. October 19-23, 2009. Kiev, Ukraine; Tungsten carbide based nanocrystalline hard metals;
  • 4 th International Boron Symposium, 15-17 October, 2009, Eskishahir, Turkey; On technological process of synthesis of boron carbide nanodispersive powders;
  • XIV International Clay Conference. 14-20 June. 2009. Castelanita Marina , Italy. Obtaining opportunities of boron carbide powders based hetero-modulus ceramics.
  • SIXTH INTERNATIONAL CONFERENCE «Materials and Coatings for Extreme Performances: Investigations, Applications, Ecologically Safe Technologies’ for Their Production and Utilization» 20-24 September, 2010. Ponizovka, Crime, Ukraine; 1.Preparation and compaction of composite nanopowders of metal carbides. 2.On possibility of application of boron-containing as neutron shield;
  • 17th International Symposium on Boron, Borides and Related Materials. Istanbul, Turkey, 2011. 1.Metal-Ceramic based on nanostructured boron carbide 2.Fabrication of Structural Ceramics for Friction Pairs Based on B4C-MeB2. 3.10B Powder-Based Neutron Shield Coating Materials;
  • International Conference HighMatTech. October, 2011, Kiev, Ukraine; Influence of doping by 3d-metals on microplastic characteristics of β -rhombohedral boron;
  • International Conference “Modern Technologies and Methods of Inorganic Materials Science”, 2012 Tbilisi, Georgia, Металлокерамика на основе нанокристаллических абразивных карбидов;
  • 3th International Samsonov Memorial Conference “Materials Sciences of Refractory compounds. Kiev, Ukraine, 2012. Production of nano-crystalline boron nitride by chemical synthesis.
  • The 18th International Symposium on Boron, Borides and Related Materials.. ISBB 2014. Honolulu, Hawaii, USA, August 31to September 5,2014,; Friction Processes in Metallic composite Materials modified with Hexagonal Boron Nitride;
  • 3th International Conference “Nanotechnologies”. Tbilisi, Georgia, 2014. An alternative method of obtaining of carbon nanotubes, fibers and magnetic clusters.
  • 2th International Conference-Modern Technologies and Methods of Inorganic Materials Science. Tbilisi, Georgia, 2015. 1. Antifrictional metallic materials modified with hexagonal boron nitride. 2. New nanoalloys for modifying the steel.

Participation in Scientific Grant Projects

  • ISTC – G-402: Preparation of single and polycrystalline 10B and 11B monoisotepes of beta-rhombohedral boron for usage in devices, containers, covering materials, and other nuclear safety facilities. Head of Group. 2001–2004;
  • STCU - GG 87: Elaboration and investigation of the Si–Ge system alloys with high-performance, Participant, 2005–2007;
  • STCU-4398. Development of Structural Ceramics Based on Boron Carbide for Friction Units Working under Extreme Conditions; Participant, 2009–2011;
  • STCU-4600. Tungsten-, titanium- and boron carbide-based nanocrystalline hardmetals; Technologist; 2009–2011;
  • GNSF#481: Tungsten and titanium carbide-based nanocrystalline hardmetals; Participant, 2009–2011;
  • STCU–P563. Development of radiation resistant structural ceramic materials based on boron carbide enriched in isotope boron-11. Head of Group. 2015–2016;

Additional information

  • Scientific Committee of the International Symposia on Boron, Borides and Related Material - Standing Member from 2002;