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.

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页码：435 / 438

页数：4

相关论文

共 12 条

[1] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].

BEAN, CP .

REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :31-+

[2] STRUCTURE DETERMINATION OF THE NEW HIGH-TEMPERATURE SUPERCONDUCTOR Y2BA4CU7O14+X [J].

BORDET, P ;

CHAILLOUT, C ;

CHENAVAS, J ;

HODEAU, JL ;

MAREZIO, M ;

KARPINSKI, J ;

KALDIS, E .

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 [J].

HO, JS ;

LIU, RS ;

CHANG, CT ;

EDWARDS, PP .

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 [J].

KARPINSKI, J ;

BEELI, C ;

KALDIS, E ;

WISARD, A ;

JILEK, E .

PHYSICA C, 1988, 153 :830-831

[7] DIRECT CONVERSION OF SUPERCONDUCTING Y2BA4CU7O15-DELTA FROM YBA2CU3O7-X AT ATMOSPHERIC-PRESSURE IN AN O-2 AMBIENT [J].

LIANG, JM ;

CHEN, LJ .

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) [J].

MORRIS, DE ;

ASMAR, NG ;

WEI, JYT ;

NICKEL, JH ;

SID, RL ;

SCOTT, JS ;

POST, JE .

PHYSICAL REVIEW B, 1989, 40 (16) :11406-11409

[9] BULK SUPERCONDUCTING Y2BA4CU7O15-DELTA AND YBA2CU4O8 PREPARED IN OXYGEN AT 1-ATM [J].

POOKE, DM ;

BUCKLEY, RG ;

PRESLAND, MR ;

TALLON, JL .

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 [J].

SHEEN, SR ;

HSU, YJ ;

CHEN, DH ;

HO, JS ;

SHEI, CY ;

CHANG, CT .

MATERIALS LETTERS, 1991, 10 (11-12) :489-493