EFFECT OF THE ANNEALING TIME ON THE PB CONCENTRATION AND PHASE-COMPOSITION OF SAMPLES FROM THE BI-PB-SR-CA-CU-O SYSTEM

被引：7

作者：

KONSTANTINOV, K ^{[1
]}

KARBANOV, S ^{[1
]}

SOULEVA, A ^{[1
]}

KOVACHEVA, D ^{[1
]}

机构：

[1] BULGARIAN ACAD SCI, INST GEN & INORGAN CHEM, BU-1040 SOFIA, BULGARIA

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1990年 / 3卷 / 06期

关键词：

D O I：

10.1088/0953-2048/3/6/009

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconducting material with a nominal composition Bi1.6Pb0.4Sr2Ca2Cu3Oy has been synthesised. The annealing time varied from 18 to 168 h for the different tests. It is established that the increase of annealing time leads to a reduction in Pb content and an increase in the volume of the 110 K 2223 phase, in relation to the 85 K 2212 phase. The results of the investigation indicate that the introduction of Pb in the crystal lattice hardly contributes to the increase in 2223 phase. A more probable explanation is that Pb causes the formation of a medium that helps the transformation of the 2212 phase into the 2223 phase. © 1990 IOP Publishing Ltd.

引用

页码：309 / 311

页数：3

共 11 条

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APPLIED PHYSICS LETTERS, 1989, 54 (19) :1929-1931

[2] ISOLATION OF THE 110-K SUPERCONDUCTING PHASE OF BI-PB-SR-CA-CU-O COMPOUNDS [J].

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APPLIED PHYSICS LETTERS, 1989, 54 (16) :1576-1578

[3] TRACKING THE FORMATION OF 2223 BISRCACU OXYGEN COMPOUNDS BY RESISTIVITY AND SUSCEPTIBILITY MEASUREMENTS REACHING TC(O)=115K [J].

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PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1989, 160 (5-6) :466-470

[4] CONCENTRATION EFFECT OF PB IN SPUTTER-DEPOSITED BI-SR-CA-CU-O SUPERCONDUCTING THIN-FILMS [J].

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JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1989, 28 (05) :L819-L822

[5] GROWTH OF THE 2223 PHASE IN LEADED BI-SR-CA-CU-O SYSTEM [J].

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JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (11) :L2055-L2058

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APPLIED PHYSICS LETTERS, 1988, 53 (22) :2220-2222

[8] STRUCTURE AND PHYSICAL-PROPERTIES OF SINGLE-CRYSTALS OF THE 84-K SUPERCONDUCTOR BI2.2SR2CA0.8CU2O8+DELTA [J].

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GLARUM, SH ;

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PHYSICAL REVIEW B, 1988, 38 (01) :893-896

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JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (06) :L1041-L1043

[10] PROPERTIES OF PB-DOPED BI-SR-CA-CU-O SUPERCONDUCTORS [J].

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APPLIED PHYSICS LETTERS, 1988, 53 (14) :1329-1331

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