Comparative Study of the Synthesis of Ceramic Composites Based on Lanthanum Orthophosphate

V. L. Ugolkov; Уголков В. Л.; L. A. Koptelova; Коптелова Л. А.; T. V. Khamova; Хамова Т. В.; L. P. Mezentseva; Мезенцева Л. П.; A. V. Osipov; Осипов А. В.

doi:10.31857/S0132665123600140

Comparative Study of the Synthesis of Ceramic Composites Based on Lanthanum Orthophosphate

作者: Ugolkov V.L.¹, Koptelova L.A.¹, Khamova T.V.¹, Mezentseva L.P.¹, Osipov A.V.¹
隶属关系:
1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, 199034, St. Petersburg, Russia
期: 卷 49, 编号 4 (2023)
页面: 439-447
栏目: Articles
URL: https://journal-vniispk.ru/0132-6651/article/view/139350
DOI: https://doi.org/10.31857/S0132665123600140
EDN: https://elibrary.ru/SHAHQC
ID: 139350

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详细

Two approaches to the synthesis of nanosized precursor powders 0.5LaPO4·nH2O–0.5ZrO(OH)2 and 0.5LaPO4·nH2O–0.5Y(OH)3 for the fabrication of ceramic composites 0.5LaPO4–0.5ZrO2 and 0.5LaPO4–0.5Y2O3 were used. In the first case, sol-gel synthesis of components (LaPO4·nH2O, ZrO(OH)2 or Y(OH)3) was carried out separately by reverse precipitation technique. In the second case, reverse precipitation was used too but without separate preparation of sols of the components. The results of the synthesis were compared by XRD analysis, thermal behavior of precursor powders by DSC/TG technique, as well as Vickers microhardness values of 0.5LaPO4–0.5ZrO2 and 0.5LaPO4–0.5Y2O3 ceramic composites.

关键词

sol-gel synthesis, 0.5LaPO4–0.5ZrO2 and 0.5LaPO4–0.5Y2O3 ceramic composites, XRD analysis, specific surface area, DSC/TG, Vickers microhardness

参考

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