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

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
Externally published	Yes

Keywords

Y211
YBCO
infiltration
superconductor

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10.1016/S1003-6326(08)60195-8

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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",

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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 - http://www.scopus.com/inward/record.url?scp=58649100000&partnerID=8YFLogxK

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

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

M3 - 文章

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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

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