Published November 2002 | Version v1
Journal article Metadata-only

Synthesis and properties of La2(Mo1-xMx)2O9 (M = Nb, Ta) ionic conductors

Creators

  • 1. Rossijskij Univ. Druzhby Narodov, Moscow (Russian Federation)
  • 2. Nauchno-Issledovatel'skij Fiziko-Khimicheskij Inst. im. L.Ya. Karpova, Moscow (Russian Federation)

Description

One synthesized and investigated into dielectric and conducting properties of La2Mo2O9 lanthanum molybdate ceramics and compounds on its basis. One showed structure phase transition and determined high ionic conductivity of La2(Mo1-xMx)2O9 lanthanum molybdate where M - Nb, Ta. One derived for the first time data on polar crystalline structure of a low-temperature modification. It is shown that at admission of 5 wt. % of niobium into La2Mo2O9 one observes increase of electric conductivity

Abstract (Russian)

Проведен синтез, исследованы диэлектрические и проводящие свойства керамики молибдата лантана La2Mo2O9 и композиций на его основе. Подтверждено наличие структурного фазового перехода и установлена высокая ионная проводимость молибдатов лантана La2(Mo1-xMx)2O9, где M - Nb, Ta. Впервые получены данные о полярном кристаллическом строении низкотемпературной модификации. Показано, что при введении 5 мас. % ниобия в La2Mo2O9 наблюдается повышение электропроводности

Additional details

Additional titles

Original title (Russian)
Синтез и свойства ионных проводников Ла

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
38
Journal Issue
11
Journal Page Range
p. 1381-1385
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
35010195
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CERAMICS; CRYSTAL STRUCTURE; CRYSTAL-PHASE TRANSFORMATIONS; ELECTRIC CONDUCTIVITY; LANTHANUM OXIDES; MOLYBDENUM OXIDES; NIOBIUM ADDITIONS; PERMITTIVITY; SYNTHESIS; TANTALUM ADDITIONS; TEMPERATURE DEPENDENCE
Descriptors DEC
ALLOYS; CHALCOGENIDES; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; LANTHANUM COMPOUNDS; MOLYBDENUM COMPOUNDS; NIOBIUM ALLOYS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; TANTALUM ALLOYS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
13 refs., 4 figs., 2 tabs.