PHASE-STABILITY AND DECOMPOSITION OF SUPERCONDUCTIVE (Y1-XCAX)BA2CU4O8(0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.1)

被引：29

作者：

WADA, T ^{[1
]}

SUZUKI, N ^{[1
]}

ICHINOSE, A ^{[1
]}

YAEGASHI, Y ^{[1
]}

YAMAUCHI, H ^{[1
]}

TANAKA, S ^{[1
]}

机构：

[1] UNIV WINDSOR,FAC ENGN,WINDSOR N9B 3P4,ONTARIO,CANADA

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1990年 / 29卷 / 06期

关键词：

Ca doping; Decomposition; High- T[!sub]c[!/sub] superconductors; Oxygen partial pressure; Thermal analysis;

D O I：

10.1143/JJAP.29.L915

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The stability of (Y1-xCax)Ba2Cu4O8 has been studied as a function of Ca content, temperature and oxygen partial pressure, P(O2), by means of thermogravimetry and differential thermal analysis. When heated at P(O2)=1 atm, YBa2Cu4O8 decomposed into YBa2Cu3.5O7.5-Y (1-2-3.5) and CuO above 899°C and the resultant 1-2-3.5 phase decomposed into YBa2Cu3O7-z (1-2-3) and CuO above 926°C. As the Ca content increased, the decomposition temperatures of both 1-2-4 and 1-2-3.5 phases were decreased and they tended to merge. Actually, when the Ca content was as high as 10% of the Y content, the 1-2-4 phase decomposed directly into a 1-2-3 phase and CuO at 884°C. © 1990 The Japan Society of Applied Physics.

引用

页码：L915 / L918

页数：4

共 11 条

[1] SYNTHESIS OF 80-K SUPERCONDUCTING YBA2CU4O8 VIA A NOVEL ROUTE [J].

BALACHANDRAN, U ;

BIZNEK, ME ;

TOMLINS, GW ;

VEAL, BW ;

POEPPEL, RB .

PHYSICA C, 1990, 165 (3-4) :335-339

[2] CALCIUM-SUBSTITUTED SUPERCONDUCTING RBA2CU4O8 WITH TC-OKSIMLR-90-K PREPARED AT ONE ATMOSPHERE [J].

BUCKLEY, RG ;

TALLON, JL ;

POOKE, DM ;

PRESLAND, MR .

PHYSICA C, 1990, 165 (5-6) :391-396

[3] SYNTHESIS OF BULK SUPERCONDUCTING YBA2CU4O8 AT ONE ATMOSPHERE OXYGEN-PRESSURE [J].

CAVA, RJ ;

KRAJEWSKI, JJ ;

PECK, WF ;

BATLOGG, B ;

RUPP, LW ;

FLEMING, RM ;

JAMES, ACWP ;

MARSH, P .

NATURE, 1989, 338 (6213) :328-330

[4] PROPERTIES OF Y-BA-CU-O THIN-FILMS WITH ORDERED DEFECT STRUCTURE - Y2BA4CU8O20-X [J].

CHAR, K ;

LEE, M ;

BARTON, RW ;

MARSHALL, AF ;

BOZOVIC, I ;

HAMMOND, RH ;

BEASLEY, MR ;

GEBALLE, TH ;

KAPITULNIK, A ;

LADERMAN, SS .

PHYSICAL REVIEW B, 1988, 38 (01) :834-837

[5] SYNTHESIS AND PROPERTIES OF THE YBA2CU4O8 SUPERCONDUCTOR [J].

JIN, S ;

OBRYAN, HM ;

GALLAGHER, PK ;

TIEFEL, TH ;

CAVA, RJ ;

FASTNACHT, RA ;

KAMMLOTT, GW .

PHYSICA C, 1990, 165 (5-6) :415-418

[6] BULK SYNTHESIS OF THE 81-K SUPERCONDUCTOR YBA2CU4O8 AT HIGH OXYGEN-PRESSURE [J].

KARPINSKI, J ;

KALDIS, E ;

JILEK, E ;

RUSIECKI, S ;

BUCHER, B .

NATURE, 1988, 336 (6200) :660-662

[7] SYNTHESIS OF BA2YCU4O8 BY ANIONIC OXIDATION-REDUCTION [J].

KOURTAKIS, K ;

ROBBINS, M ;

GALLAGHER, PK ;

TIEFEL, T .

JOURNAL OF MATERIALS RESEARCH, 1989, 4 (06) :1289-1291

[8] ORDERED-DEFECT STRUCTURE IN EPITAXIAL YBA2CU3O7-X THIN-FILMS [J].

MARSHALL, AF ;

BARTON, RW ;

CHAR, K ;

KAPITULNIK, A ;

OH, B ;

HAMMOND, RH ;

LADERMAN, SS .

PHYSICAL REVIEW B, 1988, 37 (16) :9353-9358

[9] TC INCREASED TO 90-K IN YBA2CU4O8 BY CA DOPING [J].

MIYATAKE, T ;

GOTOH, S ;

KOSHIZUKA, N ;

TANAKA, S .

NATURE, 1989, 341 (6237) :41-42

[10] 8 NEW HIGH-TEMPERATURE SUPERCONDUCTORS WITH THE 1-2-4 STRUCTURE [J].

MORRIS, DE ;

NICKEL, JH ;

WEI, JYT ;

ASMAR, NG ;

SCOTT, JS ;

SCHEVEN, UM ;

HULTGREN, CT ;

MARKELZ, AG ;

POST, JE ;

HEANEY, PJ ;

VEBLEN, DR ;

HAZEN, RM .

PHYSICAL REVIEW B, 1989, 39 (10) :7347-7350

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