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

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",

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

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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 - http://www.scopus.com/inward/record.url?scp=45449084020&partnerID=8YFLogxK

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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