Published 1989 | Version v1
Miscellaneous Metadata-only

Investigation of thermal deformations and polymorphic transformation of YBa2Cu3O7-y

Creators

  • 1. AN SSSR, Sverdlovsk (USSR). Inst. Khimii
  • 2. Leningradskij Gosudarstvennyj Univ., Leningrad (USSR)

Description

Using methods of thermal analysis, a new peculiarity in the temperature dependence of lattice parameters of YBa2Cu3O7-y rhombic modification discovered by roentgenographic technique is studied in 260-360 deg C temperature range. Some other peculiarities of thermal deformations of the given compound are studied as well. Changes in the heating rate from 30 deg/h to 50 deg/h, 100-125 and 1000 deg/h and cooling rate after heating with the rate of 50 deg/h do not affect the polymorphous transition temperature and temperature dependence of lattice parameters, thus indicating a high oxygen diffusion rate in a compound crystal structure. 4 refs.; 1 fig

Additional details

Additional titles

Original title (Russian)
Исследование термических деформаций и полиморфного превращения YBa

Publishing Information

Imprint Title
Physical chemistry and technology of high-temperature superconducting materials
Imprint Pagination
511 p.
Journal Page Range
p. 67-68.
Report number
INIS-SU--317/A

Conference

Title
1. All-union conference on physical chemistry and technology of high-temperature superconducting materials.
Dates
13-15 Sep 1988.
Place
Moscow (USSR).

INIS

Country of Publication
USSR
Country of Input or Organization
USSR
INIS RN
23052344
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; CRYSTAL LATTICES; CRYSTAL-PHASE TRANSFORMATIONS; DIFFUSION; HIGH-TC SUPERCONDUCTORS; LATTICE PARAMETERS; OXYGEN; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; ELEMENTS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SUPERCONDUCTORS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Notes
Imprint:Fizikokhimiya i tekhnologiya vysokotemperaturnykh sverkhprovodyashchikh materialov.;Trudy konferentsii.