Formation process of 2223 phase in Bi-Pb-Sr-Ca-Cu-O system via calcining at 1073 K

被引：1

作者：

Shimono, I

Kijima, N

Nagata, S

Konishi, H

Hamaguchi, Y

机构：

[1] MURORAN INST TECHNOL, MURORAN, HOKKAIDO 050, JAPAN

[2] SHINSHU UNIV, FAC TEXT SCI & TECHNOL, UEDA, NAGANO 386, JAPAN

[3] NATL ATOM ENERGY AGCY, MAT SCI RES CTR, PPSM, SERPONG, INDONESIA

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1996年 / 104卷 / 02期

关键词：

superconductor; Bi-Pb-Sr-Ca-Cu-O; 2223; phase; solid-state reaction;

D O I：

10.2109/jcersj.104.101

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：

The formation process of the 2223 phase synthesis via conventional calcining condition has been systematically investigated using XRD, SEM/EDX, TG/DTA and TMA, The calcining powder prepared at 1073 K for 18 ks consists of 2201 phase, 2212 phase, Ca2PbO4, CaO, CuO and Sr14-xCaxCu24O41. With increasing a holding time in firing process at 1133 K, 2212 phase, Ca2PbO4 and Sr14-xCaxCu24O41 did decrease, and 2223 phase, Ca2-xSrxCuO3 and Bi0.5Pb3Sr2.5Ca2CuOx increased, It was considered that 2223 phase, Ca2-xSrxCuO3 and Bi0.5Pb3Sr2.5Ca2CuOx were formed by reaction with 2212 phase, Ca2PbO4 and Sr14-xCaxCu24O41 The liquid phase was formed from 1113 to 1133 K in firing process, and then Sr14-xCaxCaxCu24O41 was drastically formed reaction with the liquid phase and CuO, The reason that needs long term-heat treatment to synthesize 2223 phase with conventional calcining condition is regarded as formation of Sr14-xCaxCu24O41.

引用

页码：101 / 108

页数：8

共 50 条

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