2-ZONE ANNEALING OF TL0.5PB0.5(SR0.8BA0.2)(2)CA2CU3OY

被引：4

作者：

ASELAGE, TL

VENTURINI, EL

VOIGT, JA

LAMPPA, DL

VANDEUSEN, SB

机构：

[1] Department 1153/MS 0345, Sandia National Laboratories, Albuquerque

来源：

JOURNAL OF MATERIALS RESEARCH | 1994年 / 9卷 / 10期

关键词：

D O I：

10.1557/JMR.1994.2470

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stable conditions have been identified for two-zone processing of the superconducting thallium cuprate Tl0.5Pb0.5(Sr0.8Ba0.2)(2)Ca2Cu3Oy. With P(O-2) of 0.8 atm, P(Tl2O) of 4.4 X 10(-3) atm, and a sample temperature of 920 degrees C, single-phase Tl0.5Pb0.5(Sr0.8Ba0.2)(2)Ca2Cu3Oy is produced with a T-c of 115 K, complete diamagnetic shielding, and Meissner fraction greater than 70%. Although a small amount of melting occurs under these conditions, a comparison of the low-field diamagnetic shielding for these samples with samples of Pb- and Sr-free TlBa2Ca2Cu3Oy and Tl2Ba2Ca2Cu3Oy suggests that such melting is not necessary to produce the triple-CuO2-layer superconductors.

引用

收藏

页码：2470 / 2473

页数：4

相关论文

共 14 条

[1] PHASE-STABILITY AND PROPERTIES OF NEAR-EQUILIBRIUM TL-CA-BA-CU-O SUPERCONDUCTORS [J].

ASELAGE, TL ;

VENTURINI, EL ;

VANDEUSEN, SB ;

HEADLEY, TJ ;

EATOUGH, MO ;

VOIGT, JA .

PHYSICA C, 1992, 203 (1-2) :25-36

[2] 2-ZONE EQUILIBRIA OF TL-CA-BA-CU-O SUPERCONDUCTORS [J].

ASELAGE, TL ;

VENTURINI, EL ;

VANDEUSEN, SB .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (02) :1023-1031

[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]

DOI T, 1991, PHYSICA C, V183, P67, DOI 10.1016/0921-4534(91)90767-S

[5] OPTIMIZATION OF THALLIUM 1223 HIGH-TEMPERATURE SUPERCONDUCTING WIRE BY A SINGLE-STAGE COLD DEFORMATION PROCESS [J].

GLOWACKI, BA ;

ASHWORTH, SP .

PHYSICA C, 1992, 200 (1-2) :140-146

[6] THERMODYNAMICS OF THE VOLATILIZATION OF TL2O FROM TL2O, TL4O3, AND TL2O3 [J].

HOLSTEIN, WL .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (16) :4224-4230

[7]

KAMO T, 1991, APPL PHYS LETT, V59, P3186, DOI 10.1063/1.105731

[8]

MORGAN PED, 1993, ADV SUPERCONDUCTIVIT, V5, P391

[9]

MORGAN PED, UNPUB POWDER DIFFRAC

[10] MONITORING SINTERING DENSIFICATION AND CRYSTALLIZATION GRAIN-GROWTH IN TL-BASED HIGH-TEMPERATURE SUPERCONDUCTORS BY ELECTRICAL-CONDUCTIVITY MEASUREMENTS [J].

RATTO, JJ ;

PORTER, JR ;

HOUSLEY, RM ;

MORGAN, PED .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1990, 29 (02) :244-251