Structural modifications of superconducting phases in Bi(Pb)-Sr-Ca-Cu-O system

被引：6

作者：

Badica, P ^{[1
]}

Aldica, G ^{[1
]}

Alexeev, AF ^{[1
]}

Gridasova, TY ^{[1
]}

Morozov, VV ^{[1
]}

机构：

[1] INST PHYS & TECHNOL MAT,BUCHAREST,ROMANIA

来源：

PHYSICA C | 1996年 / 259卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(96)00021-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bi-Pb-Sr-Ca-Cu-O samples were produced by the spray-frozen, vacuum-freeze drying method from nitrate solutions. Structural modifications of crystallites during sintering were investigated in agreement with bulk density, phase structure of the samples, critical temperature T-c and critical current density j(c). A model for morphology changes of (2223) crystallites during sintering was proposed. Maximum j(c) in a zero magnetic field is reached on samples sintered for 200-250 h.

引用

页码：92 / 96

页数：5

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