Effects of oxygen content upon phase stability of (Pb,Cu)Sr-2(Y,Ca)Cu2O7+delta

BJ Mitchell; JTS Irvine

doi:10.1016/S0921-4534(97)00449-8

Effects of oxygen content upon phase stability of (Pb,Cu)Sr-2(Y,Ca)Cu2O7+delta

BJ Mitchell^*, JTS Irvine

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Thermogravimetric analyses of(Pb,Cu) 1212 cuprates show two stages of oxygen loss on heating. If samples are heat-treated at temperatures above the first stage of oxygen lass (@400 in air) they are superconducting. In this study we demonstrate that the second stage of oxygen loss (@900 in air) is associated with decomposition of the 1212 structure, resulting in an ''SrCuO2''-type phase and a 0223-related phase. In most previous studies, temperatures in excess of this decomposition temperature have been utilised to synthesise, sinter or optimise the (Pb,Cu)1212 cuprate.

Original language	English
Pages (from-to)	815-816
Number of pages	2
Journal	Physica C: Superconductivity
Volume	282-287
Issue number	2
DOIs	https://doi.org/10.1016/S0921-4534(97)00449-8
Publication status	Published - Aug 1997
Event	International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors V - BEIJING Duration: 28 Feb 1997 → 4 Mar 1997

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title = "Effects of oxygen content upon phase stability of (Pb,Cu)Sr-2(Y,Ca)Cu2O7+delta",

abstract = "Thermogravimetric analyses of(Pb,Cu) 1212 cuprates show two stages of oxygen loss on heating. If samples are heat-treated at temperatures above the first stage of oxygen lass (@400 in air) they are superconducting. In this study we demonstrate that the second stage of oxygen loss (@900 in air) is associated with decomposition of the 1212 structure, resulting in an ''SrCuO2''-type phase and a 0223-related phase. In most previous studies, temperatures in excess of this decomposition temperature have been utilised to synthesise, sinter or optimise the (Pb,Cu)1212 cuprate.",

author = "BJ Mitchell and JTS Irvine",

year = "1997",

month = aug,

doi = "10.1016/S0921-4534(97)00449-8",

language = "English",

volume = "282-287",

pages = "815--816",

journal = "Physica C: Superconductivity",

issn = "0921-4534",

publisher = "Elsevier Science BV",

number = "2",

note = "International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors V ; Conference date: 28-02-1997 Through 04-03-1997",

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TY - JOUR

T1 - Effects of oxygen content upon phase stability of (Pb,Cu)Sr-2(Y,Ca)Cu2O7+delta

AU - Mitchell, BJ

AU - Irvine, JTS

PY - 1997/8

Y1 - 1997/8

N2 - Thermogravimetric analyses of(Pb,Cu) 1212 cuprates show two stages of oxygen loss on heating. If samples are heat-treated at temperatures above the first stage of oxygen lass (@400 in air) they are superconducting. In this study we demonstrate that the second stage of oxygen loss (@900 in air) is associated with decomposition of the 1212 structure, resulting in an ''SrCuO2''-type phase and a 0223-related phase. In most previous studies, temperatures in excess of this decomposition temperature have been utilised to synthesise, sinter or optimise the (Pb,Cu)1212 cuprate.

AB - Thermogravimetric analyses of(Pb,Cu) 1212 cuprates show two stages of oxygen loss on heating. If samples are heat-treated at temperatures above the first stage of oxygen lass (@400 in air) they are superconducting. In this study we demonstrate that the second stage of oxygen loss (@900 in air) is associated with decomposition of the 1212 structure, resulting in an ''SrCuO2''-type phase and a 0223-related phase. In most previous studies, temperatures in excess of this decomposition temperature have been utilised to synthesise, sinter or optimise the (Pb,Cu)1212 cuprate.

U2 - 10.1016/S0921-4534(97)00449-8

DO - 10.1016/S0921-4534(97)00449-8

M3 - Article

SN - 0921-4534

VL - 282-287

SP - 815

EP - 816

JO - Physica C: Superconductivity

JF - Physica C: Superconductivity

IS - 2

T2 - International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors V

Y2 - 28 February 1997 through 4 March 1997

ER -

Effects of oxygen content upon phase stability of (Pb,Cu)Sr-2(Y,Ca)Cu2O7+delta

Abstract

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