caa a22 4500 467925577 CHVBK 20180406152928.0 cr unu---uuuuu 170328e20060101xx s 000 0 eng 10.1134/S0020168506010110 doi (NATIONALLICENCE)springer-10.1134/S0020168506010110 Phase transformations during plasma synthesis of sodium polyaluminates [Elektronische Daten] [G. Tel'nova, Ya. Grabis] The synthesis of sodium beta-alumina with the use of a low-temperature nitrogen plasma is described. The major plasma synthesis product is the sodium polyaluminate Na2O·nAl2O3 with an unidentified structure and n=3.5-9.5. The phase transformations of the plasma synthesis products are studied during heating in the range 600-1400°C. The phase with the rhombohedral beta-alumina structure (β″-Al2O3) is shown to form in several steps, through metastable sodium polyaluminates. The results are analyzed in relation to the phase equilibria in the Na2O-Al2O3 system. Pleiades Publishing, Inc., 2006 Tel'nova G. Institute of Physicochemical Problems in Ceramic Science, Russian Academy of Sciences, Ozernaya ul. 48, 11936, Moscow, Russia aut Grabis Ya Institute of Inorganic Chemistry, Academy of Sciences of Latvia, Miera iela 34, 229021, Salaspils-1, Latvia aut Inorganic Materials Nauka/Interperiodica 42/1(2006-01-01), 50-58 0020-1685 42:1<50 2006 42 10789 https://doi.org/10.1134/S0020168506010110 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506010110 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tel'nova G. Institute of Physicochemical Problems in Ceramic Science, Russian Academy of Sciences, Ozernaya ul. 48, 11936, Moscow, Russia aut NATIONALLICENCE 700 1- Grabis Ya Institute of Inorganic Chemistry, Academy of Sciences of Latvia, Miera iela 34, 229021, Salaspils-1, Latvia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/1(2006-01-01), 50-58 0020-1685 42:1<50 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer