Published December 1998 | Version v1
Journal article Metadata-only

Inhomogeneities of composition, microstructure and critical currents in elongated melt-textured YBCO

Creators

  • 1. Donetskij Gosudarstvennyj Tekhnicheskij Univ., Donetsk (Ukraine)
  • 2. Portsmutskij Univ., Portsmut (United Kingdom)
  • 3. Nauchno-Issledovatel'skij Inst. Reaktivehlektron, Donetsk (Ukraine)

Description

Grain morphology, texture, changes in chemical composition and critical currents along the length of superconductive rod-like samples on the basis of barium-yttrium cuprate obtained through the zonal melting method are studied. The majority of large laminar grains, constituting the main part of the samples volume correspond to YBa2Cu3Ox (phase 123) however large grains of Y2BaCuO5 (phase 211) and phases of mutual intergrowth 123 and 211 were also identified. Disorderly-oriented small grains are represented primarily by Y2BaCuO5 and also by YBa2Cu3Ox and BaCuO2

Abstract (Russian)

Изучены морфология зерен, текстура, изменения химического состава и критических токов вдоль длины сверхпроводящих стержнеобразных образцов на основе купрата бария-иттрия, полученных методом зонной плавки. Состав большинства крупных пластинчатых зерен, составляющих основную часть об''ема образцов, соответствует YBa2Cu3Ox (фаза 123), но были также обнаружены крупные зерна Y2BaCuO5 (фаза 211) и фазы взаимного прорастания 123 и 211. Беспорядочно ориентированные мелкие зерна представлены преимущественно Y2BaCuO5, а также YBa2Cu3Ox и BaCuO2

Additional details

Additional titles

Original title (Russian)
Neodnorodnosti sostava, mikrostruktury i kriticheskikh tokov v dlinnomernykh teksturirovannykh obraztsakh YBCO

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
34
Journal Issue
12
Journal Page Range
p. 1477-1482
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31035669
Subject category
MATERIALS SCIENCE;
Quality check status
Yes
Descriptors DEI
BARIUM COMPOUNDS; CERAMICS; CHEMICAL COMPOSITION; CRITICAL CURRENT; CUPRATES; HIGH-TC SUPERCONDUCTORS; MICROSTRUCTURE; TEXTURE; YTTRIUM COMPOUNDS;
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; CURRENTS; ELECTRIC CURRENTS; OXYGEN COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS;

Optional Information

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