PARTIAL MELT PROCESSING OF MAGNETICALLY-ALIGNED YBa2Cu3O7-x THICK FILMS

被引：2

作者：

Lewis, Jennifer A. ^{[1
]}

Suratwala, Tayyab ^{[1
]}

Arndt, Kenneth C. ^{[1
]}

机构：

[1] Univ Illinois, Dept Mat Sci & Engn, 1304 W Green St, Urbana, IL 61801 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/77.233609

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Textured YBa2Cu3O7-x (YBCO) thick films were fabricated in the green state by casting particulate-based suspensions in an applied magnetic field (7 T) at ambient temperature. These films, along with non-aligned films, were fired to various temperatures above the peritectic temperature (approximate to 1020 degrees C) to evaluate the effects of partial melt processing on their microstructural development and performance properties. The degree of domain alignment in the fired films was measured by x-ray diffraction (XRD) analysis. This showed that the aligned films had a high degree of c-axis texture. Examination by SEM/EDAX revealed distinct differences in both the film density and texture development between aligned and nonaligned films. Finally, the magnetic properties of each film were measured at 5 K using a SQUID magnetometer (5.5 T maximum field). These measurements indicated that a high degree of anisotropy was present only in the partial melt processed aligned YBCO films.

引用

页码：1702 / 1705

页数：4

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