Effects of heating rate on the phase and microstructure evolution in Bi-2223/Ag/Ni superconducting tapes

被引：6

作者：

Chen, X. P. ^{[1
]}

Liu, M. ^{[1
]}

Shang, L. M. ^{[1
]}

Mei, L. ^{[1
]}

Liu, Q. ^{[1
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Heating rate; Bi-2223 superconducting tapes; Microstructure; Texture; OXYGEN PARTIAL-PRESSURE; AG-SHEATHED TAPES; (BI;

D O I：

10.1016/j.ceramint.2013.12.070

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Effects of heating rate on the phase and microstructure evolution in Bi-2223/Ag/Ni superconducting tapes were studied. It was found that 30 degrees C/h, the lowest heating rate, was the most suitable to obtain microstructure improved tapes. The volume fraction of Bi-2223 phase increased and the amount and size of secondary phases decreased with the heating rate reducing. Meanwhile, the optimal texture formed earliest in the samples heated at 30 degrees C/h. The size of Bi-2212 grains is the largest in the samples heated at 30 degrees C/h, which may lead to the largest size of Bi-2223 grains eventually. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：7293 / 7296

页数：4

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