Published June 2002 | Version v1
Journal article Metadata-only

Phase transformations in the systems Y2BaCuO5-Ba3Cu5O8 and Y2BaCuO5-BaCuO2

Creators

  • 1. Inst. Fiziki Tverdogo Tela i Poluprovodnikov NAN Belorussii, Minsk (Belarus)
  • 2. Inst. Obshchej i Neorganicheskoj Khimii im. N.S. Kurnakova RAN, Moscow (Russian Federation)

Description

One determined sequence of phase transformations within Y2BaCuO5-Ba3Cu5O8 and Y2BaCuO5-BaCuO2 systems at formation of textured ceramics and single crystal compound of YBaCu3O7-δ composition. It is shown that at cooling within Y2BaCuO5-BaCuO2 system YBa2Cu3O7-δ crystallization within 1260-1210 K range comes through YBa4Cu3O9-δ intermediate phase without oxygen extra source. One has justified assumption that within Y2BaCuO5-Ba3Cu5O8 system in 1250-1210 K range YBa2Cu3O7-δ is formed and grow based on liquid phase with oxygen absorption

Abstract (Russian)

Установлена последовательность фазовых превращений в системах Y2BaCuO5-Ba3Cu5O8 и Y2BaCuO5-BaCuO2 при образовании текстурированной керамики и монокристаллического соединения YBaCu3O7-δ. Показано, что при охлаждении в системе Y2BaCuO5-BaCuO2 кристаллизация YBa2Cu3O7-δ в интервале 1260-1210 К происходит через промежуточную фазу YBa4Cu3O9-δ без дополнительного источника кислорода. Обосновано предположение, что в системе Y2BaCuO5-Ba3Cu5O8 в интервале 1250-1210 К образование и рост YBa2Cu3O7-δ осуществляется из жидкой фазы с поглощением кислорода

Additional details

Additional titles

Original title (Russian)
Фазовые превращения в системах Ы

Publishing Information

Journal Title
Neorganicheskie Materialy
Journal Volume
38
Journal Issue
6
Journal Page Range
p. 723-729
ISSN
0002-337X
CODEN
NEOMB8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34047014
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM COMPOUNDS; CERAMICS; CRYSTALLIZATION; CUPRATES; HIGH-TC SUPERCONDUCTORS; MONOCRYSTALS; PHASE TRANSFORMATIONS; TEMPERATURE RANGE 1000-4000 K; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; CRYSTALS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SUPERCONDUCTORS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS

Optional Information

Notes
6 refs.; 1 tab.; 7 figs.