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Please use this identifier to cite or link to this item: https://elib.bsu.by/handle/123456789/196794
Title: Физико-химические свойства кобальтита лантана, легированного магнием
Authors: Яремченко, Алексей Александрович
Хартон, Владислав Вадимович
Вискуп, Александр Петрович
Ковалевский, Андрей Владиславович
Наумович, Евгений Николаевич
Вечер, Алим Александрович
Keywords: ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Химия
Issue Date: 2001
Publisher: Минск : БГУ
Citation: Вестник Белорусского государственного университета. Сер. 2, Химия. Биология. География. – 2001. - № 1. – С. 20-24.
Abstract: Solid solution formation in the system LaCo1JyIgjO 3-S has been found in the range x= 0-0,1. Electrical conductivity, thermal expansion, IR absorption and oxygen permeability of the ceramic materials were studied. Substituting 10 % of cobalt in the LaCoO3-S phase with magnesium leads to a decrease in the thermal expansion coefficients from 21,9 х10"6 to 20,0 х10"6 K-'. Electrical conductivity of the LaCoo 9Mg0 Os-S solid solution is lower than that of lanthanum cobaltite at temperatures above 600 K, but significantly exceeds the conductivity of the parent compound at 400-550 K. Oxygen permeability of the ceramic samples decreases when magnesium is incorporated into the cobalt sublattice.
URI: http://elib.bsu.by/handle/123456789/196794
ISSN: 0372-5340
Licence: info:eu-repo/semantics/openAccess
Appears in Collections:2001, №1 (февраль)

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