Journal of Siberian Federal University. Engineering & Technologies: Влияние добавок хромсодержащих нанопорошков Al2О3 на структурные изменения микропорошков оксида алюминия

Journal of Siberian Federal University. Engineering & Technologies / Влияние добавок хромсодержащих нанопорошков Al2О3 на структурные изменения микропорошков оксида алюминия

Issue: Journal of Siberian Federal University. Engineering & Technologies. 2018 11 (4)
Authors: Lyamkina, Nina E.
Contact information: Lyamkina, Nina E.: Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia;
Keywords: aluminum oxide nanopowders; phase transition; corundum ceramics
Abstract: Influence of an additive of chromium-containing Al2O3 nanopowders on phase transitions in aluminum oxide micropowder (a waste from alumina production) is investigated. Aluminum oxide nanopowders were synthesized by shock-wave method. Chromium compounds were introduced during the synthesis as well as following annealing of powders. Main difference between obtained chromium-containing Al2O3 nanopowders was their phase composition. Mixtures of nanopowders and alumina macropowders were pressed and sintered. The additive of the Al2O3 nanopowder that was dopped with chromium ions during the synthesis and is characterized by the prevalence of θ-phase is demonstrated to be the most perspective for ceramics fabrication on the alumina base
Pages: 453-460
Paper at repository of SibFU: https://elib.sfu-kras.ru/handle/2311/71645