Ceramic Composites Based on Lanthanum Orthophosphate and Alumina: Preparation and Properties
Publication type: Journal Article
Publication date: 2022-06-28
scimago Q4
wos Q4
SJR: 0.200
CiteScore: 1.2
Impact factor: 0.6
ISSN: 10876596, 1608313X
Materials Chemistry
Ceramics and Composites
Condensed Matter Physics
Abstract
An original approach to synthesis of nanosized (1 – x)LaPO4·nH2O–xAl(OH)3 precursor powders for (1 – x)LaPO4–xAl2O3 ceramic composites preparation was considered. Sol-gel synthesis was carried out separately using reverse flocculation of components. Thermal behavior of precursor powders was studied by DSC/TG. Ceramic composites with microhardness up to 30‒40 GPa were obtained by pre-heat treatment of powders and subsequent step wise sintering in the 1000–1600°C temperature range. The fracture surface of ceramic samples at different sintering temperatures was examined using electron microscopy. Ceramic samples exhibited low thermal conductivity at various temperatures and open porosity 3‒5%. Chemical stability of 0.8LaPO4–0.2Al2O3 sample was studied by leaching experiment in a solution of a mixture of NaCl and Na2SO4 salts. The resulting set of properties of (1 – x)LaPO4–xAl2O3 ceramic composites made it possible to offer these materials as heat barriers for rotors in high-speed micro gas turbines, and as ceramic matrices for immobilization of nuclear waste.
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Mezentseva L. P. et al. Ceramic Composites Based on Lanthanum Orthophosphate and Alumina: Preparation and Properties // Glass Physics and Chemistry. 2022. Vol. 48. No. 3. pp. 219-231.
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Mezentseva L. P., Osipov A. V., Ugolkov V. L., Kruchinina I. Yu., Ivanova P. I., Khamova T. V., Lubimtsev A. S. Ceramic Composites Based on Lanthanum Orthophosphate and Alumina: Preparation and Properties // Glass Physics and Chemistry. 2022. Vol. 48. No. 3. pp. 219-231.
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RIS
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TY - JOUR
DO - 10.1134/s1087659622030075
UR - https://doi.org/10.1134/s1087659622030075
TI - Ceramic Composites Based on Lanthanum Orthophosphate and Alumina: Preparation and Properties
T2 - Glass Physics and Chemistry
AU - Mezentseva, L P
AU - Osipov, A. V.
AU - Ugolkov, V. L.
AU - Kruchinina, I Yu
AU - Ivanova, P I
AU - Khamova, T V
AU - Lubimtsev, A S
PY - 2022
DA - 2022/06/28
PB - Pleiades Publishing
SP - 219-231
IS - 3
VL - 48
SN - 1087-6596
SN - 1608-313X
ER -
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BibTex (up to 50 authors)
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@article{2022_Mezentseva,
author = {L P Mezentseva and A. V. Osipov and V. L. Ugolkov and I Yu Kruchinina and P I Ivanova and T V Khamova and A S Lubimtsev},
title = {Ceramic Composites Based on Lanthanum Orthophosphate and Alumina: Preparation and Properties},
journal = {Glass Physics and Chemistry},
year = {2022},
volume = {48},
publisher = {Pleiades Publishing},
month = {jun},
url = {https://doi.org/10.1134/s1087659622030075},
number = {3},
pages = {219--231},
doi = {10.1134/s1087659622030075}
}
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MLA
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Mezentseva, L. P., et al. “Ceramic Composites Based on Lanthanum Orthophosphate and Alumina: Preparation and Properties.” Glass Physics and Chemistry, vol. 48, no. 3, Jun. 2022, pp. 219-231. https://doi.org/10.1134/s1087659622030075.