Melting temperature of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>and GdBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>at subatmospheric partial pressure

Fadila Taïr; Laura Carreras; Jaume Camps; Jordi Farjas; Pere Roura; Albert Calleja; Teresa Puig; Xavier Obradors

doi:10.1016/j.jallcom.2016.08.072

Melting temperature of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>and GdBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>at subatmospheric partial pressure

Fadila Taïr, Laura Carreras, Jaume Camps, Jordi Farjas, Pere Roura, Albert Calleja, Teresa Puig, Xavier Obradors

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

9 Citations (Scopus)

Abstract

© 2016 The melting temperature, Tm, of YBa2Cu3O7−xand GdBa2Cu3O7−xsuperconductor ceramic compounds has been measured by differential thermal analysis (DTA) over a large oxygen partial pressure range of five orders of magnitude (2·10−5 < PO2 < 1 bar). It is shown that the DTA peak and endset temperatures are closer to Tmthan the onset temperature. Correct measurement of Tmrequires low heating rates and subatmospheric pressure conditions to avoid temperature shifts due to local oxygen overpressure and kinetic effects.

Original language	English
Pages (from-to)	787-792
Journal	Journal of Alloys and Compounds
Volume	692
DOIs	https://doi.org/10.1016/j.jallcom.2016.08.072
Publication status	Published - 1 Jan 2017

Keywords

Cuprates
High-Tc superconductors
Phase transitions
Thermal analysis

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10.1016/j.jallcom.2016.08.072

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@article{d4efe390b9e74c8592625533fec1092a,

title = "Melting temperature of YBa2Cu3O7−xand GdBa2Cu3O7−xat subatmospheric partial pressure",

abstract = "{\textcopyright} 2016 The melting temperature, Tm, of YBa2Cu3O7−xand GdBa2Cu3O7−xsuperconductor ceramic compounds has been measured by differential thermal analysis (DTA) over a large oxygen partial pressure range of five orders of magnitude (2·10−5 < PO2 < 1 bar). It is shown that the DTA peak and endset temperatures are closer to Tmthan the onset temperature. Correct measurement of Tmrequires low heating rates and subatmospheric pressure conditions to avoid temperature shifts due to local oxygen overpressure and kinetic effects.",

keywords = "Cuprates, High-Tc superconductors, Phase transitions, Thermal analysis",

author = "Fadila Ta{\"i}r and Laura Carreras and Jaume Camps and Jordi Farjas and Pere Roura and Albert Calleja and Teresa Puig and Xavier Obradors",

year = "2017",

month = jan,

day = "1",

doi = "10.1016/j.jallcom.2016.08.072",

language = "English",

volume = "692",

pages = "787--792",

}

Melting temperature of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>and GdBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>at subatmospheric partial pressure. / Taïr, Fadila; Carreras, Laura; Camps, Jaume; Farjas, Jordi; Roura, Pere; Calleja, Albert; Puig, Teresa; Obradors, Xavier.

In: Journal of Alloys and Compounds, Vol. 692, 01.01.2017, p. 787-792.

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

TY - JOUR

T1 - Melting temperature of YBa2Cu3O7−xand GdBa2Cu3O7−xat subatmospheric partial pressure

AU - Taïr, Fadila

AU - Carreras, Laura

AU - Camps, Jaume

AU - Farjas, Jordi

AU - Roura, Pere

AU - Calleja, Albert

AU - Puig, Teresa

AU - Obradors, Xavier

PY - 2017/1/1

Y1 - 2017/1/1

N2 - © 2016 The melting temperature, Tm, of YBa2Cu3O7−xand GdBa2Cu3O7−xsuperconductor ceramic compounds has been measured by differential thermal analysis (DTA) over a large oxygen partial pressure range of five orders of magnitude (2·10−5 < PO2 < 1 bar). It is shown that the DTA peak and endset temperatures are closer to Tmthan the onset temperature. Correct measurement of Tmrequires low heating rates and subatmospheric pressure conditions to avoid temperature shifts due to local oxygen overpressure and kinetic effects.

AB - © 2016 The melting temperature, Tm, of YBa2Cu3O7−xand GdBa2Cu3O7−xsuperconductor ceramic compounds has been measured by differential thermal analysis (DTA) over a large oxygen partial pressure range of five orders of magnitude (2·10−5 < PO2 < 1 bar). It is shown that the DTA peak and endset temperatures are closer to Tmthan the onset temperature. Correct measurement of Tmrequires low heating rates and subatmospheric pressure conditions to avoid temperature shifts due to local oxygen overpressure and kinetic effects.

KW - Cuprates

KW - High-Tc superconductors

KW - Phase transitions

KW - Thermal analysis

U2 - 10.1016/j.jallcom.2016.08.072

DO - 10.1016/j.jallcom.2016.08.072

M3 - Article

VL - 692

SP - 787

EP - 792

ER -

Melting temperature of YBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>and GdBa<inf>2</inf>Cu<inf>3</inf>O<inf>7−x</inf>at subatmospheric partial pressure

Abstract

Keywords

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