IMPROVEMENT OF CRITICAL CURRENT-DENSITY IN THE BI-PB-SR-CA-CU-O SYSTEM THROUGH HOT ISOSTATIC PRESSING

被引：38

作者：

DOU, SX ^{[1
]}

LIU, HK ^{[1
]}

APPERLEY, MH ^{[1
]}

SONG, KH ^{[1
]}

SORRELL, CC ^{[1
]}

EASTERLING, KE ^{[1
]}

NISKA, J ^{[1
]}

GUO, SJ ^{[1
]}

机构：

[1] LULEA UNIV TECHNOL,DEPT ENGN MAT,S-95187 LULEA,SWEDEN

来源：

PHYSICA C | 1990年 / 167卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(90)90670-A

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of hot isostatic pressing (HIPing) on densification and the superconducting properties of the Bi-Pb-Sr-Ca-O system were investigated. A relative density up to 95% and a critical current density greater than 1100 A/cm2 at 77 K were achieved through HIPing at 650°C for 2 h under 200 MPa argon. Under these conditions, the product gave a value of Jc four times that without HIPing. To was unaffected by HIPing for samples encapsulated with a combination of glass and silver tubes. However, To was suppressed from 103 K to 86 K for samples encapsulated with stainless steel and silver tubes while Jc increased from 260 A/ cm2 to 1086 A/cm2 during HIPing, indicating that the weak links were significantly improved. A new minor phase, having a composition of Bi/Pb/Sr/Ca/Cu=0.58/2.8/3.0/2.1/1.1, was observed in HIPed samples but its effect on Jc is not clear. © 1990.

引用

页码：525 / 528

页数：4

共 7 条

[1] ASLAN M, 1989, INFLUENCE POST HIPIN, P125
[2] DOU XS, IN PRESS PHYS REV B
[3] MASUDA H, IN PRESS JPN J APPL
[4] NISKA J, EFFECT OXYGEN LOSS D
[5] ENHANCEMENT OF JC IN Y1-XCA1.1XBA2-0.1XCU3OY
OKAI, B
KOSUGE, M
TAKAHASHI, K
OHTA, M
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (10): : L1843 - L1844
[6] SHI D, IN PRESS PHYS REV LE
[7] Tien J. K., 1988, Proceedings of the SPIE - The International Society for Optical Engineering, V879, P164, DOI 10.1117/12.943994

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