Phenomenology of corundum crystal formation in supercritical water fluid Panasyuk, G P [Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninskii prospect 31, Moscow, GSP-1, 119991 (Russian Federation)]; Danchevskaya, M N [Chemistry Department, M V Lomonosov Moscow State University, Vorob'evy Gory (Russian Federation)]; Belan, V N [Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninskii prospect 31, Moscow, GSP-1, 119991 (Russian Federation)]; Voroshilov, I L [Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninskii prospect 31, Moscow, GSP-1, 119991 (Russian Federation)]; Ivakin, Yu D [Chemistry Department, M V Lomonosov Moscow State University, Vorob'evy Gory (Russian Federation)] 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM HYDROXIDES; ALUMINIUM OXIDES; CORUNDUM; CRYSTAL GROWTH; CRYSTALS; ELECTRON MICROSCOPY; FLUIDS; PHASE TRANSFORMATIONS; PRESSURE RANGE MEGA PA 10-100; SOLIDS; SYNTHESIS; WATER This paper describes a solid phase transformation of aluminium hydroxide into oxyhydroxide (boehmite), and then into well formed fine crystals of corundum ({alpha}-Al{sub 2}O{sub 3}) in the medium of a supercritical water fluid at a temperature of 450 deg. C and a pressure of 30 MPa. Using electron microscopy the development and processing of corundum crystal formation from incipient crystals to crystal growth and their perfecting is traced. Available online at http://stacks.iop.org/0953-8984/16/S1215/cm4_14_033.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/;INIS United Kingdom 2004-04-14 English Journal Article Journal Name: Journal of Physics. Condensed Matter; Journal Volume: 16; Journal Issue: 14; Conference: Joint 19. and 41. EHPRG international conference on high pressure science and technology, Bordeaux (France), 7-11 Jul 2003; Other Information: PII: S0953-8984(04)74962-0; DOI: 10.1088/0953-8984/16/14/033; Country of input: International Atomic Energy Agency (IAEA); PBD: 14 Apr 2004 Medium: X; Size: page(s) S1215-S1221 https://doi.org/10.1088/0953-8984/16/14/033 [] 14 16 Journal ID: ISSN 0953-8984; JCOMEL; TRN: GB04P1912000609 GBN 2010-12-31 20545150