PROPERTY AND STRUCTURE OF YBA2CU3OX-AG COMPOSITES PREPARED FROM NITRATE SOLUTIONS

被引：14

作者：

HIKICHI, Y ^{[1
]}

KATO, M ^{[1
]}

SUZUKI, S ^{[1
]}

NOMURA, T ^{[1
]}

MIYAMOTO, M ^{[1
]}

机构：

[1] KOKUSHIKAN UNIV, FAC ENGN, SETAGAYA KU, TOKYO 154, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 09期

关键词：

Ag addition; grain growth; Critical current density; Critical temperature; Degradation in moisture; Homogeneity of structure; Nitrate solutions; Superconductor; YBa[!sub]2[!/sub]Cu[!sub]3[!/sub]O[!sub]x[!/sub;

D O I：

10.1143/JJAP.29.L1615

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Mixtures of Y, Ba, Cu, and Ag nitrate aqueous solutions (nominal molten ratio of Y:Ba:Cu=1:2:3) were evaporated to dryness. The dried powders were codecomposed at 850°C in air, and sintered at 920°C for 20 h in O2. The phases were only orthorhombic YBa2Cu3Ox and Ag. The bulk density, grain size, and critical current density (Jc) increased with increasing amount of Ag≦5 wt%: for instance, up to 5.65 g/cm3, 30µm, and 215 A/cm2, respectively. The critical temperature (Tc(zero)) was about 91 K (with a width of 1–2 K) and insensitive to the amount of Ag≦5%. With addition of Ag, the degradation in moisture was improved. © 1990 The Japan Society of Applied Physics.

引用

页码：L1615 / L1617

页数：3

共 15 条

[1] RESISTIVITY OF LA1.825SR0.175CUO4 AND YBA2CU3O7 TO 1100-K - ABSENCE OF SATURATION AND ITS IMPLICATIONS [J].

GURVITCH, M ;

FIORY, AT .

PHYSICAL REVIEW LETTERS, 1987, 59 (12) :1337-1340

[2] ANALYSIS OF THE DC-RESISTIVITY OF YBA2CU3OX - DEDUCTION OF THE INTRAGRAIN RESISTIVITY [J].

HALBRITTER, J ;

DIETRICH, MR ;

KUPFER, H ;

RUNTSCH, B ;

WUHL, H .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 71 (04) :411-413

[3]

Huang C. Y., 1989, Modern Physics Letters B, V3, P525, DOI 10.1142/S0217984989000844

[4] CRITICAL CURRENT CHARACTERISTICS OF YBA2CU3O7-X-AG COMPOSITE [J].

IMANAKA, N ;

SAITO, F ;

IMAI, H ;

ADACHI, G .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1989, 28 (04) :L580-L582

[5]

KANAI M, 1988, J CERAM SOC JPN, V96, P378

[6] SUPERCONDUCTING PROPERTY AND STRUCTURE STUDIES OF YBA2CU3O7-AG2O COMPOSITES [J].

LIN, JJ ;

CHEN, TM ;

YAO, YD ;

CHEN, JW ;

GOU, YS .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1990, 29 (03) :497-499

[7]

LUE JT, 1988, MODERN PHYS LETT B, V2, P589

[8]

MOTAI T, 1988, J CERAM SOC JPN, V96, P373

[9]

NAGATA K, 1989, J CERAM SOC JPN, V97, P1044

[10] ELECTRONIC-PROPERTIES AND CRITICAL CURRENT DENSITIES OF SUPERCONDUCTING (Y1BA2CU3O6.9)1-XAGX COMPOUNDS [J].

PAVUNA, D ;

BERGER, H ;

AFFRONTE, M ;

VANDERMAAS, J ;

CAPPONI, JJ ;

GUILLOT, M ;

LEJAY, P ;

THOLENCE, JL .

SOLID STATE COMMUNICATIONS, 1988, 68 (06) :535-538

← 1 2 →