Granular and intergranular properties of hot pressed BSCCO (2223) superconductors

被引：6

作者：

Tampieri, A

Fiorani, D

Sparvieri, N

Rinaldi, S

Celotti, G

Bartolucci, R

机构：

[1] IRTEC CNR, Faenza, Italy

[2] ICMAT CNR, Area Ric Roma, I-00016 Rome, Italy

[3] Alenia Ric, Rome, Italy

[4] Univ Ancona, Dipartimento Sci Mat & Terra, I-60131 Ancona, Italy

来源：

JOURNAL OF MATERIALS SCIENCE | 1999年 / 34卷 / 24期

关键词：

D O I：

10.1023/A:1004786324179

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of hot pressing conditions (sintering temperature and time) on the superconducting properties of (2223) Bi(Pb)SrCaCuO were investigated by transport and magnetic measurements. The advancement of the densification process leads first to an improvement of the electrical connectivity between grains (J(c transport) increases) and then to a deterioration of both intragranular and intergranular properties (T-c, J(c magnetic) and J(c transport) decrease) because of the induced loss of oxygen, 2212 continuous intergrain network and other defect formation. (C) 1999 Kluwer Academic Publishers.

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页码：6177 / 6182

页数：6

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