Low-temperature synthesis and characterization of apatite-type lanthanum silicates

被引：26

作者：

Kharlamova, T. ^{[1
]}

Pavlova, S. ^{[1
]}

Sadykov, V. ^{[1
]}

Lapina, O. ^{[1
]}

Khabibulin, D. ^{[1
]}

Krieger, T. ^{[1
]}

Zaikovskii, V. ^{[1
]}

Ishchenko, A. ^{[1
]}

Salanov, A. ^{[1
]}

Muzykantov, V. ^{[1
]}

Mezentseva, N. ^{[1
]}

Chaikina, M. ^{[2
]}

Uvarov, N. ^{[2
]}

Frade, J. ^{[3
]}

Argirusis, Chr. ^{[4
]}

机构：

[1] RAS, SB, Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[2] RAS, SB, Inst Solid State Chem, Novosibirsk 630128, Russia

[3] Univ Aveiro, P-3810193 Aveiro, Portugal

[4] Clausthal Univ Technol, D-38678 Clausthal Zellerfeld, Germany

来源：

SOLID STATE IONICS | 2008年 / 179卷 / 21-26期

关键词：

lanthanum silicate; apatite; synthesis; conductivity; oxygen mobility;

D O I：

10.1016/j.ssi.2008.01.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Al- and Sr-doped apatite-type lanthanum silicates (ATLS) have been prepared using mechanochemical activation (MA) and Pechini (Pe) methods, with some structural and electrical properties of doped samples being studied. MA provides ATLS formation already at room temperature after 20-35 min activation. Synthesis via Pe route occurs through the solid state reaction mechanism. MA of carbonate precursors obtained via Pe method results in the fort-nation of a single-phase ATLS after annealing at 900 degrees C. For Al-doped apatite samples fort-nation of LaAlO3 as a secondary phase is observed at high substitution levels depending on the sample stoichiometry, which affects properties of ceramics obtained. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：1018 / 1023

页数：6

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