Published May 1999 | Version v1
Journal article Metadata-only

Phase equilibria and the crystal structure of phases in the MeCo1-xMnxO3-δ (Me = Sr, Ba) system

Creators

  • 1. Ural'skij Gosudarstvennyj Univ., Ekaterinburg (Russian Federation)
  • 2. UrO RAN, Inst. Fiziki Metallov, Ekaterinburg (Russian Federation)

Description

Phase equilibria in the system SrCo1-xMnxO3-δ in the entire range of compositions in the air at 1100 Deg C were studied by the method of X-ray phase analysis. It has been ascertained that in the range 0.45 ≤ x ≤ 0.55 a phase of alternating composition is formed being indexed on the basis of multilayer hexagonal cell with the following parameters: a = b 5.528 (1), c = 11.36 (2) A and a = b = 5.532 (2), c = 11.32 (2) A for x 0.45 and x = 0.55 respectively. Compounds Sr2Co2O5 with parameters: a 5.4536 (2), b = 15.739 (4), c = 5.5458 (1) A and SrMnO3 with parameters: a 5.4483 (3), c = 0746 (5) A are described as rhombic and 4H-structure respectively

Abstract (Russian)

Методом рентгенофазового анализа изучены фазовые равновесия в системе SrCo1-xMnxO3-δ во всем интервале составов на воздухе при 1100 град С. Установлено, что в интервале 0.45 ≤ x ≤ 0.55 образуется фаза переменного состава, индицированная на основе многослойной гексагональной ячейки с параметрами a = b = 5.528 (1), c = 11.36 (2) и a = b = 5.532 (2), c = 11.32 (2) A для х = 0.45 и х = 0.55 соответственно. Соединения Sr2Co2O5 с параметрами а = 5.4536 (2), b = 15.739 (4), c = 5.5458 (1) A и SrMnO3 с параметрами a = 5.4483 (3), c = 0746 (5) A описаны как ромбическая и 4Н-структуры соответственно

Additional details

Additional titles

Original title (Russian)
Фазовые равновесия и кристаллическая структура фаз в системе MeCo

Publishing Information

Journal Title
Zhurnal Fizicheskoj Khimii
Journal Volume
73
Journal Issue
5
Journal Page Range
p. 862-866
ISSN
0044-4537
CODEN
ZFKHA9

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31035720
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AIR; CHEMICAL COMPOSITION; COBALT OXIDES; CONCENTRATION RATIO; CRYSTAL LATTICES; EQUILIBRIUM; LATTICE PARAMETERS; MANGANESE OXIDES; PHASE DIAGRAMS; PHASE STUDIES; SOLID SOLUTIONS; STRONTIUM OXIDES; TEMPERATURE RANGE 1000-4000 K
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COBALT COMPOUNDS; CRYSTAL STRUCTURE; DIAGRAMS; DISPERSIONS; FLUIDS; GASES; INFORMATION; MANGANESE COMPOUNDS; MIXTURES; OXIDES; OXYGEN COMPOUNDS; SOLUTIONS; STRONTIUM COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

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