PROCESSING AND CHARACTERIZATION OF THIN-FILMS OF THE ONE-LAYER PHASE IN THE BI-SR-CA-CU-O SYSTEM - CA SOLUBILITY

被引：5

作者：

GOLDEN, SJ

LANGE, FF

VAIDYA, KJ

BLOOMER, TE

机构：

[1] Materials Department, College of Engineering, University of California, Santa Barbara, California

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 04期

关键词：

FILMS; SUPERCONDUCTORS; SOLID SOLUTIONS; PROCESSING; CALCIUM;

D O I：

10.1111/j.1151-2916.1991.tb06927.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thin films in the Bi-Sr-Ca-Cu-O system have been synthesized from liquid ethyl hexanoate precursors by spin pyrolysis. The extension of the ternary one-layer phase field into the quaternary system has been determined through the replacement of Sr by Ca in single-phase, c-axis oriented thin films. A significant Ca solubility in the one-layer phase was found, the maximum being around 0.4 per 1 Cu. All one-layer compositions were excess in Bi and deficient in (Sr + Ca) relative to the ideal composition and showed overall cation deficiency. The c lattice parameter and solidus temperature were found to vary systematically with composition. The interpretation of the Ca solubility results in terms of Ca doping of the cation-deficient "Sr" sites and implications regarding the high-T(c) Cu-layer phases in the system are discussed.

引用

页码：797 / 800

页数：4

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