Phase change of precursor powder of YBCO superconductors by powder melting process

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

Phase change of precursor powder of YBCO superconductors by powder melting process

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

School of Materials Sience and Engineering

Northwest Institute for Nonferrous Metal Research
Northwestern Polytechnical University Xian

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

Abstract

The effects of heating rate and holding time on phase constitute and microstructures of YBa₂Cu₃O_7-x precursor powder by powder melting process (PMP) were investigated. The phase change of precursor powder was studied by using high temperature X-ray diffraction at 400°C/h and 6000°C/h during heating to peritectic decomposition temperature. The YBa₂Cu₃O_7-x phase is formed by adopting a heating rate of 400°C/h. However, there exists no YBa₂Cu₃O_7-x phase at 6000°C/h. The formation range of YBa₂Cu₃O_7-x is obtained by studying the effect of holding time on YBa₂Cu₃O_7-x precursor powder. The results are beneficial to controlling the process conditions and understanding the mechanism of powder melting process.

Original language	English
Pages (from-to)	851-853
Number of pages	3
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	37
Issue number	5
State	Published - May 2008

Keywords

Heating rate
Holding time
Phase change
YBaCuO

Cite this

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title = "Phase change of precursor powder of YBCO superconductors by powder melting process",

abstract = "The effects of heating rate and holding time on phase constitute and microstructures of YBa2Cu3O7-x precursor powder by powder melting process (PMP) were investigated. The phase change of precursor powder was studied by using high temperature X-ray diffraction at 400°C/h and 6000°C/h during heating to peritectic decomposition temperature. The YBa2Cu3O7-x phase is formed by adopting a heating rate of 400°C/h. However, there exists no YBa2Cu3O7-x phase at 6000°C/h. The formation range of YBa2Cu3O7-x is obtained by studying the effect of holding time on YBa2Cu3O7-x precursor powder. The results are beneficial to controlling the process conditions and understanding the mechanism of powder melting process.",

keywords = "Heating rate, Holding time, Phase change, YBaCuO",

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

year = "2008",

month = may,

language = "英语",

volume = "37",

pages = "851--853",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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TY - JOUR

T1 - Phase change of precursor powder of YBCO superconductors by powder melting process

AU - Feng, Jianqing

AU - Zhou, Lian

AU - Lu, Yafeng

AU - Zhang, Pingxiang

AU - Xu, Xiaoyan

AU - Chen, Shaokai

AU - Zhang, Cuiping

AU - Xiong, Xiaomei

AU - Liu, Guoqing

PY - 2008/5

Y1 - 2008/5

N2 - The effects of heating rate and holding time on phase constitute and microstructures of YBa2Cu3O7-x precursor powder by powder melting process (PMP) were investigated. The phase change of precursor powder was studied by using high temperature X-ray diffraction at 400°C/h and 6000°C/h during heating to peritectic decomposition temperature. The YBa2Cu3O7-x phase is formed by adopting a heating rate of 400°C/h. However, there exists no YBa2Cu3O7-x phase at 6000°C/h. The formation range of YBa2Cu3O7-x is obtained by studying the effect of holding time on YBa2Cu3O7-x precursor powder. The results are beneficial to controlling the process conditions and understanding the mechanism of powder melting process.

AB - The effects of heating rate and holding time on phase constitute and microstructures of YBa2Cu3O7-x precursor powder by powder melting process (PMP) were investigated. The phase change of precursor powder was studied by using high temperature X-ray diffraction at 400°C/h and 6000°C/h during heating to peritectic decomposition temperature. The YBa2Cu3O7-x phase is formed by adopting a heating rate of 400°C/h. However, there exists no YBa2Cu3O7-x phase at 6000°C/h. The formation range of YBa2Cu3O7-x is obtained by studying the effect of holding time on YBa2Cu3O7-x precursor powder. The results are beneficial to controlling the process conditions and understanding the mechanism of powder melting process.

KW - Heating rate

KW - Holding time

KW - Phase change

KW - YBaCuO

UR - https://www.scopus.com/pages/publications/45449084020

M3 - 文章

AN - SCOPUS:45449084020

SN - 1002-185X

VL - 37

SP - 851

EP - 853

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 5

ER -

Phase change of precursor powder of YBCO superconductors by powder melting process

Abstract

Keywords

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