High-temperature X-ray and neutron diffraction studies of lithium metazirconate / Pantyukhina MI,Andreev OL,Zubkov VG,Tyutyunnik AP,Batalov NN // RUSSIAN JOURNAL OF INORGANIC CHEMISTRY. - 2001. - V. 46, l. 10. - P. 1559-1566.

ISSN/EISSN:

0036-0236 / нет данных

Type:

Article

Abstract:

The structure of the solid lithium-conducting electrolyte Li2ZrO3 was comprehensively studied by X-ray and neutron diffraction at temperatures from 25 to 550 degreesC. An increase in temperature leads to the anisotropic expansion of the lattice, caused by a change of interatomic distances in the monoclinic Structure Of Li2ZrO3. The local oxygen environment of the Li(l) atom undergoes the strongest distortion, and the environments of the Li(2) and Zr positions are distorted to a lesser extent. This process is accompanied by a considerable change in the Li(1) and Li(2) site occupancies. Anisotropy of thermal expansion coefficients results in a sharp chance in the electrical properties of the electrolyte: at 430 degreesC, its electrical conductivity increases jump-wise and the activation energy decreases (from 98.4 to 13.8 kJ/mol), which may be associated with a change of the mass transfer mechanism. This change in properties can be treated as the second-order phase transition.

Author keywords:

нет данных

DOI:

нет данных

Web of Science ID:

ISI:000171958000022

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	OCT
Publisher	INTERPERIODICA
Address	PO BOX 1831, BIRMINGHAM, AL 35201-1831 USA
Language	English
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear
ResearcherID-Numbers	Tyutyunnik, Alexander/P-2230-2015
Number-of-Cited-References	6
Usage-Count-Since-2013	4
Journal-ISO	Russ. J. Inorg. Chem.
Doc-Delivery-Number	488VW