FABRICATION OF CERAMIC Y1-XCAXBA2CU4O8+DELTA AND YBA2CU3O7 SUPERCONDUCTORS FROM OXALATE PRECURSORS AT AMBIENT PRESSURE

被引：23

作者：

KELLNER, K ^{[1
]}

WANG, XZ ^{[1
]}

GRITZNER, G ^{[1
]}

BAUERLE, D ^{[1
]}

机构：

[1] JOHANNES KEPLER UNIV,INST ANGEW PHYS,A-4040 LINZ,AUSTRIA

来源：

PHYSICA C | 1991年 / 173卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(91)90370-E

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ceramic Y1-(x)Ca(x)Ba2Cu4O8+delta and YBa2Cu3O7 superconductors were prepared from coprecipitated oxalate precursor material. Calcination and firing at 820-degrees-C under atmospheric oxygen pressure yielded pure phase Ca2+ doped and undoped YBa2Cu4O8+delta superconducting material. The T(co) values increased from 80 to 85 K with an increase in the Ca2+ content from x = 0 to 0.1. YBa2Cu3O7 was obtained after calcination of the oxalates at 860-degrees-C and sintering at 920-degrees-C under ambient oxygen pressure. This superconductor had a T(co) of 92 K with a transition width of 1 K.

引用

页码：208 / 212

页数：5

共 17 条

[1] FORMATION OF SUPERCONDUCTING BI2-YPBYSR2CA2CU3OX FROM COPRECIPITATED OXALATES
BERNHARD, K
GRITZNER, G
WANG, XZ
BAUERLE, D
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1990, 86 (02) : 293 - 299
[2] CALCIUM-SUBSTITUTED SUPERCONDUCTING RBA2CU4O8 WITH TC-OKSIMLR-90-K PREPARED AT ONE ATMOSPHERE
BUCKLEY, RG
TALLON, JL
POOKE, DM
PRESLAND, MR
[J]. PHYSICA C, 1990, 165 (5-6): : 391 - 396
[3] SYNTHESIS OF BULK SUPERCONDUCTING YBA2CU4O8 AT ONE ATMOSPHERE OXYGEN-PRESSURE
CAVA, RJ
KRAJEWSKI, JJ
PECK, WF
BATLOGG, B
RUPP, LW
FLEMING, RM
JAMES, ACWP
MARSH, P
[J]. NATURE, 1989, 338 (6213) : 328 - 330
[4] BULK SYNTHESIS OF THE 81-K SUPERCONDUCTOR YBA2CU4O8 AT HIGH OXYGEN-PRESSURE
KARPINSKI, J
KALDIS, E
JILEK, E
RUSIECKI, S
BUCHER, B
[J]. NATURE, 1988, 336 (6200) : 660 - 662
[5] ORDERED-DEFECT STRUCTURE IN EPITAXIAL YBA2CU3O7-X THIN-FILMS
MARSHALL, AF
BARTON, RW
CHAR, K
KAPITULNIK, A
OH, B
HAMMOND, RH
LADERMAN, SS
[J]. PHYSICAL REVIEW B, 1988, 37 (16): : 9353 - 9358
[6] TC INCREASED TO 90-K IN YBA2CU4O8 BY CA DOPING
MIYATAKE, T
GOTOH, S
KOSHIZUKA, N
TANAKA, S
[J]. NATURE, 1989, 341 (6237) : 41 - 42
[7] 8 NEW HIGH-TEMPERATURE SUPERCONDUCTORS WITH THE 1-2-4 STRUCTURE
MORRIS, DE
NICKEL, JH
WEI, JYT
ASMAR, NG
SCOTT, JS
SCHEVEN, UM
HULTGREN, CT
MARKELZ, AG
POST, JE
HEANEY, PJ
VEBLEN, DR
HAZEN, RM
[J]. PHYSICAL REVIEW B, 1989, 39 (10): : 7347 - 7350
[8] STABILITY OF 124-SUPERCONDUCTOR, 123-SUPERCONDUCTOR, AND 247-SUPERCONDUCTOR
MORRIS, DE
ASMAR, NG
NICKEL, JH
SID, RL
WEI, JYT
POST, JE
[J]. PHYSICA C, 1989, 159 (03): : 287 - 294
[9] SYNTHESIS OF YBA2CU4O8 POWDERS BY SOL-GEL METHOD UNDER AMBIENT PRESSURE
MURAKAMI, H
YAEGASHI, S
NISHINO, J
SHIOHARA, Y
TANAKA, S
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (03): : L445 - L446
[10] Stroh R., 1990, CFI - Ceramic Forum International - Berichte der Deutschen Keramischen Gesellschaft, V67, P143

← 1 2 →