Processing of thallium-based superconducting tapes for high current density

被引：26

作者：

Selvamanickam, V

Finkle, T

Pfaffenbach, K

Haldar, P

Peterson, EJ

Salazaar, KV

Roth, EP

Tkaczyk, JE

机构：

[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM

[2] SANDIA NATL LABS,ALBUQUERQUE,NM 87185

[3] GE CO,SCHENECTADY,NY 12301

来源：

PHYSICA C | 1996年 / 260卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(96)00143-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Optimum thermomechanical processing conditions have been developed to achieve a high current density in powder-in-tube (PIT) thallium-based (Tl,Pb)-1223 and (Tl,Bi)-1223 tapes. Critical currents in excess of 25 A corresponding to a current density of 20000 A/cm(2) have been achieved in these tapes at 77 K. Heat treatment and intermediate deformation sequences, heating rates, and starting precursor phase assemblages have been examined to optimize the current density. A combination of processing conditions that result in incremental densification, less microcracking and liquid formation in the early and final stages of thermomechanical treatment is found to result in the highest current densities.

引用

页码：313 / 320

页数：8

共 10 条

[1]

AIHARA K, 1992, ADV SUPERCOND, V4, P617

[2] ADVANCES IN THE DEVELOPMENT OF SILVER-SHEATHED (BI,PB)2223 COMPOSITE CONDUCTORS [J].

CARTER, WL ;

RILEY, GN ;

OTTO, A ;

PARKER, DR ;

CHRISTOPHERSON, CJ ;

MASUR, LJ ;

BUCZEK, D .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1995, 5 (02) :1145-1149

[3] THE PREPARATION OF 1223 TL-CA-BA-CU-OXIDE SUPERCONDUCTING FILMS VIA THE REACTION OF SILVER-CONTAINING SPRAY DEPOSITED CA-BA-CU-OXIDE WITH THALLIUM OXIDE VAPOR [J].

DELUCA, JA ;

KARAS, PL ;

TKACZYK, JE ;

BEDNARCZYK, PJ ;

GARBAUSKAS, MF ;

BRIANT, CL ;

SORENSEN, DB .

PHYSICA C, 1993, 205 (1-2) :21-31

[4]

HALDAR P, 1994, PROCESSING OF LONG LENGTHS OF SUPERCONDUCTORS, P23

[5]

IIJIMA Y, 1992, ADV SUPERCOND, V4, P679

[6]

OKADA M, 1995, JPN J APPL PHYS, V34, P981

[7] ENHANCED FORMATION OF 1223 PHASE BY PARTIAL REPLACEMENT OF BI FOR TL IN IN-SITU SYNTHESIZED SILVER-SHEATHED SUPERCONDUCTING TAPE OF TL1-XBIXSR2-YBAYCA2CU3O9-DELTA [J].

REN, ZF ;

WANG, JH .

PHYSICA C, 1993, 216 (1-2) :199-204

[8]

SATO K, 1993, PROCESSING PROPERTIE, V1, P121

[9]

VOIGT JA, 1991, HIGH TEMPERATURE SUP, P291

[10] PREPARATION OF HIGH-QUALITY YBA2CU3O7-DELTA THICK-FILMS ON FLEXIBLE NI-BASED ALLOY SUBSTRATES WITH TEXTURED BUFFER LAYERS [J].

WU, XD ;

FOLTYN, SR ;

ARENDT, P ;

TOWNSEND, J ;

CAMPBELL, IH ;

TIWARI, P ;

JIA, QX ;

WILLIS, JO ;

MALEY, MP ;

COULTER, JY ;

PETERSON, DE .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1995, 5 (02) :2001-2006

← 1 →