EFFECTS OF INITIAL, INTERMEDIATE AND FINAL SINTERINGS IN PREPARATION OF Ag-SHEATHED Bi-2223 TAPES

被引：1

作者：

Jeong, D. Y. ^{[1
]}

Han, I. Y. ^{[1
]}

Sohn, M. H. ^{[1
]}

Han, S. K. ^{[2
]}

Kim, Y. C. ^{[2
]}

机构：

[1] Korea Electrotechnol Res Inst, Appl Superconduct Lab, Chang Won 641120, South Korea

[2] Pusan Natl Univ, Pusan 607, South Korea

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233858

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Effects of initial, intermediate and final sintering on superconducting properties, morphology and J, were studied in Ag-sheathed Bi(Pb)-Sr-Ca-Cu-O tapes prepared using the powder-in-tube method and repetitions of a combined process of pressing and sintering. The variables in the repetitive process were a history by which the calcined constituent powders were heat treated before filled into Ag-tubes, and duration periods of the intermediate and final sinterings. The effects are discussed in terms of conversion of 2212 phase to 2223 and vice versa, the formation mechanism of 2223 phase, and alignment and connection of the 2223 grains. In the present study, a jc in the order of 10(4) A/cm(2) at 77 K and 0 T was obtained.

引用

页码：968 / 971

页数：4

共 4 条

[1]

Rubin L. M., 1992, IBM RJ, V8773

[2] MICROSTRUCTURES AND JC-B CHARACTERISTICS OF AG-SHEATHED BI-BASED SUPERCONDUCTING WIRES [J].

UEYAMA, M ;

HIKATA, T ;

KATO, T ;

SATO, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1991, 30 (8A) :L1384-L1386

[3]

Umezawa A., PHYS C IN PRESS

[4] MICROSTRUCTURAL STUDY OF BI(2223)/AG TAPES WITH JC(77-K, 0 T) VALUES OF UP TO 3.3X10(4)A CM-2 [J].

YAMADA, Y ;

OBST, B ;

FLUKIGER, R .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1991, 4 (04) :165-171

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