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Zhurnal Tekhnicheskoi Fiziki, 2022, Volume 92, Issue 11, Pages 1687–1698
DOI: https://doi.org/10.21883/JTF.2022.11.53442.57-22 (Mi jtf7474) 		 
Physical science of materials

Study of the effect of a small addition of ZrO$_2$ on the density and grain growth of alumina

M. S. Boldina, A. A. Popova, A. A. Murashova, N. V. Sakharova, S. V. Shotina, A. V. Nokhrina, V. N. Chuvil’deeva, N. Yu. Tabachkovabc, K. E. Smetaninaa

a National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
b National University of Science and Technology «MISIS», Moscow, Russia
c Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
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DOI: https://doi.org/10.21883/JTF.2022.11.53442.57-22
Abstract: The effect of an additive of 0.5 wt.% of zirconium oxide on the spark plasma sintering (SPS) kinetics of alumina powders has been studied. Ceramics were obtained by mixing alumina powders in a planetary mill with grinding media from stabilized zirconium oxide. The activation energy of SPS was estimated using the Young–Cutler model. It has been shown that the density and average grain size in ceramics obtained from submicron alumina powders are significantly affected by the nonequilibrium state of the interfaces formed as a result of the transformation of the amorphous phase present on the alumina powder particle surface. The grain size and density of ceramics obtained from fine powders are significantly affected by the coalescence of ZrO$_2$ particles.
Keywords: alumina, zirconium oxide, spark plasma sintering, density, diffusion, activation energy.
Funding agency Grant number
Russian Science Foundation 20-73-10113
Ministry of Science and Higher Education of the Russian Federation 075-15-2021-696
This study was supported by the Russian Science Foundation (Grant № 20-73-10113). The study by transmission electron microscopy was performed on the equipment of the Center for Collective Use Materials Science and Metallurgy NUST MISIS (project of the Russian Ministry of Education and Science № 075-15-2021-696).
Received: 18.03.2022
Revised: 11.07.2022
Accepted: 11.07.2022
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. S. Boldin, A. A. Popov, A. A. Murashov, N. V. Sakharov, S. V. Shotin, A. V. Nokhrin, V. N. Chuvil’deev, N. Yu. Tabachkova, K. E. Smetanina, “Study of the effect of a small addition of ZrO$_2$ on the density and grain growth of alumina”, Zhurnal Tekhnicheskoi Fiziki, 92:11 (2022), 1687–1698
Citation in format AMSBIB
\Bibitem{BolPopMur22}
\by M.~S.~Boldin, A.~A.~Popov, A.~A.~Murashov, N.~V.~Sakharov, S.~V.~Shotin, A.~V.~Nokhrin, V.~N.~Chuvil’deev, N.~Yu.~Tabachkova, K.~E.~Smetanina
\paper Study of the effect of a small addition of ZrO$_2$ on the density and grain growth of alumina
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2022
\vol 92
\issue 11
\pages 1687--1698
\mathnet{http://mi.mathnet.ru/jtf7474}
\crossref{https://doi.org/10.21883/JTF.2022.11.53442.57-22}
\elib{https://elibrary.ru/item.asp?id=49607999}
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