Published June 2006 | Version v1
Journal article Metadata-only

Structure and electrical conductivity of (La0.9Sr0.1)[(Ga1-xCrx)0.8Mg0.2]O3-δ (x=0-0.35) solid solutions

Creators

  • 1. Nauchno-Issledovatel'skij Fiziko-Khimicheskij Inst. im. L.Ya. Karpova, Moscow (Russian Federation)
  • 2. Tsentr Issledovanij i Razrabotok YuKOS, Moscow (Russian Federation)

Description

Perovskite-like ceramic solid solutions (La0.9Sr0.1)[(Ga1-xCrx)0.8Mg0.2]O3-δ (x=0-0.35) are synthesized by solid-phase synthesis in the range of 900-1100 Deg C. Phase composition and parameters of the structure were controlled by X-ray phase analysis. Parameters of structure, microstructure and electric conductive properties of ceramics are studied. Compression of lattice with the growth of x, increase of summary electric conductivity because of strengthening of electron component on the probable lowering of ionic component are the result of cationic substitutions

Abstract (Russian)

Методом твердофазного синтеза в интервале температур 900-1100 град С cинтезированы перовскитоподобные керамические твердые растворы (La0.9Sr0.1)[(Ga1-xCrx)0.8Mg0.2]O3-δ (x=0-0.35). Фазовый состав и параметры структуры контролировали методом рентгенофазового анализа. Изучены параметры структуры, микроструктура и электропроводящие свойства керамик. Результатом катионных замещений является сжатие решетки с ростом х, повышение суммарной электропроводности вследствие усиления электронной составляющей при предполагаемом снижении ионной составляющей

Additional details

Additional titles

Original title (Russian)
Структура и электропроводност' твердых растворов (Ла

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
42
Journal Issue
6
Journal Page Range
p. 760-766
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37106594
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S36: MATERIALS SCIENCE;
Descriptors DEI
CERAMICS; CHEMICAL COMPOSITION; CHROMIUM OXIDES; CUBIC LATTICES; ELECTRIC CONDUCTIVITY; GALLIUM OXIDES; LANTHANUM OXIDES; MAGNESIUM OXIDES; MICROSTRUCTURE; SOLID SOLUTIONS; STRONTIUM OXIDES; SYNTHESIS; TEMPERATURE RANGE 1000-4000 K; X-RAY DIFFRACTION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CHROMIUM COMPOUNDS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; DISPERSIONS; ELECTRICAL PROPERTIES; GALLIUM COMPOUNDS; HOMOGENEOUS MIXTURES; LANTHANUM COMPOUNDS; MAGNESIUM COMPOUNDS; MIXTURES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; SOLUTIONS; STRONTIUM COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
26 refs., 6 figs., 1 tab.