Published August 2005 | Version v1
Journal article Metadata-only

Internal oxidation in Bi2.1-xPbxSr2-yCa1-zRy+zCu2O8+d (R = Y, Nd, La) solid solutions

Creators

  • 1. Moskovskij Gosudarstvennyj Univ. im. M.V. Lomonosova, Moscow (Russian Federation)

Description

Bi2.1-xPbxSr2CaCu2O8+d samples containing Y, Nd, or La on the Sr or Ca site were synthesized at 760-790 deg C in flowing N2 and were oxidized in air at different temperatures. The samples were characterized by X-ray diffraction, transmission electron microscopy, thermogravimetry, chemical analysis, inelastic neutron scattering, and EXAFS spectroscopy. The oxidation kinetics of the solid solutions and the microstructure of the oxidation products were shown to correlate with the rare earth content

Abstract (Russian)

Образцы Bi2.1-xPbxSr2CaCu2O8+d с замещением Sr или Са на Y, Nd или La, синтезированные при 760-790 град С в потоке N2 и окисленные на воздухе при различных температурах, изучены методами рентгенофазового анализа, просвечивающей электронной микроскопии, термогравиметрического анализа, химического анализа, неупругого рассеяния нейтронов, а также с помощью исследования тонкой структуры края поглощения рентгеновского излучения. Обнаружена корреляция между кинетикой окисления этих твердых растворов, микроструктурой продуктов окисления и содержанием редкоземельного элемента

Additional details

Additional titles

Original title (Russian)
Внутреннее окисление в твердых растворах Би

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
41
Journal Issue
8
Journal Page Range
p. 966-970
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
36094520
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AIR; BISMUTH OXIDES; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; CHEMICAL REACTION KINETICS; CONCENTRATION RATIO; COPPER OXIDES; CRYSTAL LATTICES; LANTHANUM OXIDES; LEAD OXIDES; MICROSTRUCTURE; NEODYMIUM OXIDES; OXIDATION; SOLID SOLUTIONS; STRONTIUM OXIDES; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COPPER COMPOUNDS; CRYSTAL STRUCTURE; DISPERSIONS; FLUIDS; GASES; HOMOGENEOUS MIXTURES; KINETICS; LANTHANUM COMPOUNDS; LEAD COMPOUNDS; MIXTURES; NEODYMIUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; REACTION KINETICS; SOLUTIONS; STRONTIUM COMPOUNDS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Notes
7 refs., 5 figs., 1 tab.