Microstructure and stopped growth mechanism of Y123 bulk fabricated by directional infiltration and growth

Hao DONG; Rui HU; Jin shan LI; Hong chao KOU; Xiang yi XUE; Hui CHANG; Hai tao CAO; Lian ZHOU

doi:10.1016/S1003-6326(08)60195-8

Microstructure and stopped growth mechanism of Y123 bulk fabricated by directional infiltration and growth

Hao DONG
, Rui HU
, Jin shan LI
, Hong chao KOU
, Xiang yi XUE
, Hui CHANG
, Hai tao CAO
, Lian ZHOU

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian
Northwest Institute for Nonferrous Metal Research

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

4 Scopus citations

Abstract

The infiltration-growth process was used as an alternative to conventional melt processing techniques for the preparation of bulk YBa₂Cu₃O_7-x(Y123) with finely dispersed small size Y₂BaCuO₅(Y211) particles. Bulk YBCO superconductors with uniformly distributed particles of micron-sized Y211 were prepared by the directional infiltration and growth(DIG). The microstructure changes of the Y211 particles at various stages of processing were studied. About 70% of Y211 particles are under 1 μm in the final sample. The different stopped growth mechanism of this material along the c axis and ab plane was discussed. Undercooling and viscosity lead to tanglesome thick boundary layer. So the Y123 growth along c axis is stopped. Yttrium lack in front of the ab plane is the main reason why the growth stops at this direction.

Original language	English
Pages (from-to)	1139-1144
Number of pages	6
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	18
Issue number	5
DOIs	https://doi.org/10.1016/S1003-6326(08)60195-8
State	Published - Oct 2008

Keywords

Y211
YBCO
infiltration
superconductor

Access to Document

10.1016/S1003-6326(08)60195-8

Cite this

@article{7bde5a72fc5f4b44bc5b0e6428541fb7,

title = "Microstructure and stopped growth mechanism of Y123 bulk fabricated by directional infiltration and growth",

abstract = "The infiltration-growth process was used as an alternative to conventional melt processing techniques for the preparation of bulk YBa2Cu3O7-x(Y123) with finely dispersed small size Y2BaCuO5(Y211) particles. Bulk YBCO superconductors with uniformly distributed particles of micron-sized Y211 were prepared by the directional infiltration and growth(DIG). The microstructure changes of the Y211 particles at various stages of processing were studied. About 70\% of Y211 particles are under 1 μm in the final sample. The different stopped growth mechanism of this material along the c axis and ab plane was discussed. Undercooling and viscosity lead to tanglesome thick boundary layer. So the Y123 growth along c axis is stopped. Yttrium lack in front of the ab plane is the main reason why the growth stops at this direction.",

keywords = "Y211, YBCO, infiltration, superconductor",

author = "Hao DONG and Rui HU and LI, \{Jin shan\} and KOU, \{Hong chao\} and XUE, \{Xiang yi\} and Hui CHANG and CAO, \{Hai tao\} and Lian ZHOU",

year = "2008",

month = oct,

doi = "10.1016/S1003-6326(08)60195-8",

language = "英语",

volume = "18",

pages = "1139--1144",

journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

issn = "1003-6326",

publisher = "Nonferrous Metals Society of China",

number = "5",

}

TY - JOUR

T1 - Microstructure and stopped growth mechanism of Y123 bulk fabricated by directional infiltration and growth

AU - DONG, Hao

AU - HU, Rui

AU - LI, Jin shan

AU - KOU, Hong chao

AU - XUE, Xiang yi

AU - CHANG, Hui

AU - CAO, Hai tao

AU - ZHOU, Lian

PY - 2008/10

Y1 - 2008/10

N2 - The infiltration-growth process was used as an alternative to conventional melt processing techniques for the preparation of bulk YBa2Cu3O7-x(Y123) with finely dispersed small size Y2BaCuO5(Y211) particles. Bulk YBCO superconductors with uniformly distributed particles of micron-sized Y211 were prepared by the directional infiltration and growth(DIG). The microstructure changes of the Y211 particles at various stages of processing were studied. About 70% of Y211 particles are under 1 μm in the final sample. The different stopped growth mechanism of this material along the c axis and ab plane was discussed. Undercooling and viscosity lead to tanglesome thick boundary layer. So the Y123 growth along c axis is stopped. Yttrium lack in front of the ab plane is the main reason why the growth stops at this direction.

AB - The infiltration-growth process was used as an alternative to conventional melt processing techniques for the preparation of bulk YBa2Cu3O7-x(Y123) with finely dispersed small size Y2BaCuO5(Y211) particles. Bulk YBCO superconductors with uniformly distributed particles of micron-sized Y211 were prepared by the directional infiltration and growth(DIG). The microstructure changes of the Y211 particles at various stages of processing were studied. About 70% of Y211 particles are under 1 μm in the final sample. The different stopped growth mechanism of this material along the c axis and ab plane was discussed. Undercooling and viscosity lead to tanglesome thick boundary layer. So the Y123 growth along c axis is stopped. Yttrium lack in front of the ab plane is the main reason why the growth stops at this direction.

KW - Y211

KW - YBCO

KW - infiltration

KW - superconductor

UR - https://www.scopus.com/pages/publications/58649100000

U2 - 10.1016/S1003-6326(08)60195-8

DO - 10.1016/S1003-6326(08)60195-8

M3 - 文章

AN - SCOPUS:58649100000

SN - 1003-6326

VL - 18

SP - 1139

EP - 1144

JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - 5

ER -

Microstructure and stopped growth mechanism of Y123 bulk fabricated by directional infiltration and growth

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this