GLASS-CERAMIC FOR HIGH-TC SUPERCONDUCTORS

被引：12

作者：

GAN, FX

LI, GM

机构：

[1] Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai, 201800

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1991年 / 130卷 / 01期

关键词：

D O I：

10.1016/0022-3093(91)90157-2

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：

Glasses in the Bi-Ca-Sr-Cu-O system were prepared by both twin roller and metal-plate quenching techniques. The crystallization process was studied by differential thermal and thermogravimetric analysis, X-ray diffraction, and electron microscopy as well as electrical measurements. The influence of electrical field on the crystallization of the glasses was investigated for the first time. The route of crystallization is strongly composition-dependent and growth of crystals in the glasses can be accelerated by the applied electrical field. The preliminary experiment showed that the glass-ceramics prepared by the current-heating technique exhibited highly preferred orientation. The effects of annealing conditions on the superconductivity in the Bi-Ca-Sr-Cu-O glass-ceramics were also studied.

引用

页码：67 / 77

页数：11

共 19 条

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