The study on melting behavior of precursor powders for powder melting processed YBa2Cu3O7-x superconductors

Jianqing Feng; Yafeng Lu; Lian Zhou; Pingxiang Zhang; Xiaoyan Xu; Shaokai Chen; Cuiping Zhang; Xiaomei Xiong; Guoqing Liu

doi:10.1016/j.physc.2007.05.001

The study on melting behavior of precursor powders for powder melting processed YBa₂Cu₃O_7-x superconductors

Jianqing Feng, Yafeng Lu, Lian Zhou, Pingxiang Zhang, Xiaoyan Xu, Shaokai Chen, Cuiping Zhang, Xiaomei Xiong, Guoqing Liu

School of Materials Sience and Engineering

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

8 Scopus citations

Abstract

We have investigated the melting behavior of precursor powder for YBa₂Cu₃O_7-x superconducting bulks prepared by powder melting process (PMP). The phase transition and the melting process have been studied by high temperature X-ray powder diffractometer and differential analyzer. The results have shown that the PMP precursor powders including Y₂BaCuO₅, BaCuO₂ and CuO can transform into the YBa₂Cu₃O_7-x phase if the heating rate is not very high, whereas the YBa₂Cu₃O_7-x would not appear when the fast heating rate is used. The microstructure of these samples prepared by different heating rates has been also investigated by scanning electron microscopy. The results are available to understanding the mechanism of powder melting process.

Original language	English
Pages (from-to)	52-55
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	459
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physc.2007.05.001
State	Published - 1 Aug 2007

Keywords

Microstructure
Phase transition
YBaCuO superconductors

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10.1016/j.physc.2007.05.001

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title = "The study on melting behavior of precursor powders for powder melting processed YBa2Cu3O7-x superconductors",

abstract = "We have investigated the melting behavior of precursor powder for YBa2Cu3O7-x superconducting bulks prepared by powder melting process (PMP). The phase transition and the melting process have been studied by high temperature X-ray powder diffractometer and differential analyzer. The results have shown that the PMP precursor powders including Y2BaCuO5, BaCuO2 and CuO can transform into the YBa2Cu3O7-x phase if the heating rate is not very high, whereas the YBa2Cu3O7-x would not appear when the fast heating rate is used. The microstructure of these samples prepared by different heating rates has been also investigated by scanning electron microscopy. The results are available to understanding the mechanism of powder melting process.",

keywords = "Microstructure, Phase transition, YBaCuO superconductors",

author = "Jianqing Feng and Yafeng Lu and Lian Zhou and Pingxiang Zhang and Xiaoyan Xu and Shaokai Chen and Cuiping Zhang and Xiaomei Xiong and Guoqing Liu",

year = "2007",

month = aug,

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doi = "10.1016/j.physc.2007.05.001",

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volume = "459",

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TY - JOUR

T1 - The study on melting behavior of precursor powders for powder melting processed YBa2Cu3O7-x superconductors

AU - Feng, Jianqing

AU - Lu, Yafeng

AU - Zhou, Lian

AU - Zhang, Pingxiang

AU - Xu, Xiaoyan

AU - Chen, Shaokai

AU - Zhang, Cuiping

AU - Xiong, Xiaomei

AU - Liu, Guoqing

PY - 2007/8/1

Y1 - 2007/8/1

N2 - We have investigated the melting behavior of precursor powder for YBa2Cu3O7-x superconducting bulks prepared by powder melting process (PMP). The phase transition and the melting process have been studied by high temperature X-ray powder diffractometer and differential analyzer. The results have shown that the PMP precursor powders including Y2BaCuO5, BaCuO2 and CuO can transform into the YBa2Cu3O7-x phase if the heating rate is not very high, whereas the YBa2Cu3O7-x would not appear when the fast heating rate is used. The microstructure of these samples prepared by different heating rates has been also investigated by scanning electron microscopy. The results are available to understanding the mechanism of powder melting process.

AB - We have investigated the melting behavior of precursor powder for YBa2Cu3O7-x superconducting bulks prepared by powder melting process (PMP). The phase transition and the melting process have been studied by high temperature X-ray powder diffractometer and differential analyzer. The results have shown that the PMP precursor powders including Y2BaCuO5, BaCuO2 and CuO can transform into the YBa2Cu3O7-x phase if the heating rate is not very high, whereas the YBa2Cu3O7-x would not appear when the fast heating rate is used. The microstructure of these samples prepared by different heating rates has been also investigated by scanning electron microscopy. The results are available to understanding the mechanism of powder melting process.

KW - Microstructure

KW - Phase transition

KW - YBaCuO superconductors

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U2 - 10.1016/j.physc.2007.05.001

DO - 10.1016/j.physc.2007.05.001

M3 - 文章

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SN - 0921-4534

VL - 459

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-2

ER -

The study on melting behavior of precursor powders for powder melting processed YBa₂Cu₃O_7-x superconductors

Abstract

Keywords

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