Published June 1998 | Version v1
Journal article Metadata-only

Defect structure of Li1-xCo0.5xVO3 0<x≤0.35 solid solution

Creators

  • 1. UrO RAN, Inst. Khimii Tverdogo Tela, Ekaterinburg (Russian Federation)

Description

The phase composition of the Li2O-CoO-V2O5 system is verified through the methods of RPA, EPR and IR-spectroscopy. It is shown that the extension of the Li1-xCo0.5VO3 solid solution constitutes 0<x≤0.35 by x=0.35. It is assumed that as a result Li1-of deformation and convergence of vanadium-oxygen polyhedrons in the Li1-xCo0.5VO3 system there takes place formation of the nearest surrounding, analogous to the vanadium atoms surrounding in bronze. With the x-value growth there occurs transition from the proper disordering to domination of impurity defects in the structure

Abstract (Russian)

методами РФА, ЭПР и ИК-спектроскопии уточнен фазовый состав системы Li2O-CoO-V2O5. Показано, что протяженность твердого раствора Li1-xCo0.5x cjcnfdkztn 0<x≤0.35; при x=0.35. Предположено, что в структуре Li1-xCo0.5xVO3 в результате деформации и сближения ванадийкислородных полиэдров вокруг части атомов ванадия формируется ближайшее окружение, аналогичное окружению атомов ванадия в бронзе. С ростом величины х в твердом растворе происходит переход от собственного разупорядочения к доминированию в структуре примесных дефектов

Additional details

Additional titles

Original title (Russian)
Особенности дефектной структуры твердого раствора Ли

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
34
Journal Issue
6
Journal Page Range
p. 704-711
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31034947
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
COBALT ALLOYS; CONCENTRATION RATIO; ELECTRIC CONDUCTIVITY; LITHIUM ALLOYS; PHASE DIAGRAMS; PHASE STUDIES; POINT DEFECTS; SOLID SOLUTIONS; SYNTHESIS; VANADATES
Descriptors DEC
ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIAGRAMS; DISPERSIONS; ELECTRICAL PROPERTIES; INFORMATION; MIXTURES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SOLUTIONS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS

Optional Information

Notes
7 refs., 10 figs., 2 tabs.