Доклады Академии наукДоклады Академии наук0869-5652The Russian Academy of Sciences1442310.31857/S0869-56524856701-703Research ArticleProduction of high-flexural-strength corundum ceramicsPanasyukG. P.panasyuk@igis.ras.ruSemenovE. A.panasyuk@igis.ras.ruKozerozhetsI. V.irina135714@yandex.ruDanchevskayaM. N.panasyuk@igis.ras.ruLukinE. S.panasyuk@igis.ras.ruBelanV. N.panasyuk@igis.ras.ruVoroshilovI. L.panasyuk@igis.ras.ruAzarovaL. A.panasyuk@igis.ras.ruIzotovA. D.<p>Corresponding Member of the Russian Academy of Sciences</p>panasyuk@igis.ras.ruKurnakov Institute of General and Inorganic Chemistry of the Russian Academy of SciencesLomonosov Moscow State UniversityMendeleev University of Chemical Technology of Russia2405201948567017032606201926062019Copyright © 2019, Russian academy of sciences2019<p class="a"><span lang="EN-US">A new method was proposed to produce high-flexural-strength corundum ceramics from </span><span class="Symbol"><span lang="EN-US"></span></span><span lang="EN-US">-Al<sub>2</sub>O<sub>3</sub> samples synthesized by heat treatment of boehmite AlOOH at 1300 </span><span class="Symbol"><span lang="EN-US"></span></span><span lang="EN-US">C for 5 h. It was shown that hydrothermal treatment of MDGA-grade hydrargillite at 200 </span><span class="Symbol"><span lang="EN-US"></span></span><span lang="EN-US">C in a 0.4 wt % magnesium acetate solution for 3 days gives finely crystalline boehmite, which is a feedstock for synthesizing corundum ceramics with a flexural strength of 400 MPa.</span></p>corundum ceramicsflexural strengthboehmiteкорундовая керамикапрочность на изгиббёмит[Komolikov Yu.I., Kashcheev I.D., Pudov V. I. Influence of the Procedure of Getting of a Highly Dispersed Additive on the Properties of Corundum Ceramics // Refractories and Industrial Ceramics. 2018. Т. 58. В. 6. С. 626-629. DOI: 10.1007/s11148-018-0157-9.][Митрошин А. Н., Космынин Д. А. Керамика как материал выбора в эндопротезировании коленного сустава // Известия высших учебных заведений. Поволжский регион. Мед. науки. 2016. № 1 (37). С. 98-110.][Badaev F. Z., Tarasovskii V. P., Novoselov R. A., Khairi A. K., Reznichenko A. V. The Forming of Aluminum-Oxide Ceramics Precursors by Means of Alumina Alloy D16 Chemical Dispersion // Novye Ogneupory. New Refractories. 2015. V. 1. P. 10-13. DOI: 10.17073/1683-4518-2015-1-10-13.][Panasyuk G.P., Belan V.N., Voroshilov I.L., Kozerozhets I.V., Luchkov I.V., Kondakov D.F., Demina L. I. The Study of Hydrargillite and Gamma-Alumina Conversion Process in Boehmite in Different Hydrothermal Media // Theor. Foundations of Chemical Eng. 2013. Т. 47. В. 4. С. 415-421 DOI: 10.1134/S0040579513040143.][Kostenko V., Pavlov S., Nikolaeva S. Influence of a High-Power Pulsed Ion Beam on the Mechanical Properties of Corundum Ceramics. 6th Int. Conf.: Modern Technologies for Non-Destructive Testing. 2018. Т. 289. UNSP 012019 DOI: 10.1088/1757-899X/289/1/012019.]