SYNTHESIS OF A 90 K Y2BA4CU7O15-X SUPERCONDUCTOR UNDER AMBIENT-PRESSURE BY TRIETHYLAMMONIUMOXALATE COPRECIPITATION

被引：5

作者：

CHEN, TM ^{[1
]}

HO, JS ^{[1
]}

LIU, RS ^{[1
]}

KOO, HS ^{[1
]}

机构：

[1] IND TECHNOL RES INST,MAT RES LABS,HSINCHU,TAIWAN

来源：

PHYSICA C | 1993年 / 215卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)90247-N

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A 90 K superconducting Y2Ba4Cu7O15-x (247) powder with fine and homogeneous grain size was prepared by oxalate/triethylamine co-precipitation of a stoichiometric amount of mixed cations of yttrium, barium and copper from their aqueous solution of nitrate salts. Characterization results of the 247 superconductor by X-ray diffraction, electrical resistivity and magnetization measurements are reported. The intragrain critical current density (J(c)) of the as-prepared 247 superconductor was derived from magnetic hysteresis to be 8.5 X 10(6) A/cm2 at 5 K and 1 T. This new route may have considerable potential in the large-scale preparation of Y2Ba4Cu7O15-x.

引用

页码：435 / 438

页数：4

共 12 条

[1] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS
BEAN, CP
[J]. REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) : 31 - +
[2] STRUCTURE DETERMINATION OF THE NEW HIGH-TEMPERATURE SUPERCONDUCTOR Y2BA4CU7O14+X
BORDET, P
CHAILLOUT, C
CHENAVAS, J
HODEAU, JL
MAREZIO, M
KARPINSKI, J
KALDIS, E
[J]. NATURE, 1988, 334 (6183) : 596 - 598
[3] FISCHER JF, 1967, ANAL CHEM, V39, P1550
[4] SYNTHESIS, AT AMBIENT PRESSURE, OF THE 80-K SUPERCONDUCTOR YBA2CU4O8 BY TRIETHYLAMMONIUM OXALATE COPRECIPITATION
HO, JS
LIU, RS
CHANG, CT
EDWARDS, PP
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1991, (09) : 664 - 665
[5] HO JS, 1990, APPL PHYS LETT, V58, P2426
[6] CRYSTALLIZATION OF YBA2CU3O7+X FROM NEARLY STOICHIOMETRIC AND NONSTOICHIOMETRIC MELTS, UNDER OXYGEN PRESSURES UP TO 2800-BAR
KARPINSKI, J
BEELI, C
KALDIS, E
WISARD, A
JILEK, E
[J]. PHYSICA C, 1988, 153 : 830 - 831
[7] DIRECT CONVERSION OF SUPERCONDUCTING Y2BA4CU7O15-DELTA FROM YBA2CU3O7-X AT ATMOSPHERIC-PRESSURE IN AN O-2 AMBIENT
LIANG, JM
CHEN, LJ
[J]. APPLIED PHYSICS LETTERS, 1990, 57 (20) : 2142 - 2144
[8] SYNTHESIS AND PROPERTIES OF THE 2-4-7 SUPERCONDUCTORS R2BA4CU7O15-X (R = Y, EU, GD, DY, HO, ER)
MORRIS, DE
ASMAR, NG
WEI, JYT
NICKEL, JH
SID, RL
SCOTT, JS
POST, JE
[J]. PHYSICAL REVIEW B, 1989, 40 (16): : 11406 - 11409
[9] BULK SUPERCONDUCTING Y2BA4CU7O15-DELTA AND YBA2CU4O8 PREPARED IN OXYGEN AT 1-ATM
POOKE, DM
BUCKLEY, RG
PRESLAND, MR
TALLON, JL
[J]. PHYSICAL REVIEW B, 1990, 41 (10): : 6616 - 6620
[10] SYNTHESIS AND CHARACTERIZATION OF HIGH-TC Y-BA-CU-O SUPERCONDUCTING OXIDES BY COPRECIPITATION FROM TRIETHYLAMINE-OXALATE MEDIA
SHEEN, SR
HSU, YJ
CHEN, DH
HO, JS
SHEI, CY
CHANG, CT
[J]. MATERIALS LETTERS, 1991, 10 (11-12) : 489 - 493

← 1 2 →