Preparation of a superconducting Tl2Ca2Ba2Cu3Ox thick film by processing a rolled Ca-Ba-Cu-O film in Tl2O3 vapor

Inventors

Qamar A. Shams, University of Arkansas, Fayetteville
Allen M. Hermann, University of Arkansas, Fayetteville
Zhengzhi Sheng, University of Arkansas, Fayetteville

Document Type

Patent

Publication Date

3-17-1992

Abstract

This invention provides a method for making Tl-Ca-Ba-Cu-O superconductive materials in a film shape. After placing a Ca2Ba2Cu3O7 powder onto some suitable substrate, such as platinum or copper, the substrate and powder are rolled between two rollers until a desired thickness is achieved. The film can then be taken off the substrate. Thallium oxide is then evaporated on the precursor film to make superconductive films. The Tl2O3 can be evaporated in a furnace or vacuum.

Department

Electrical Engineering; Physics

Patent Number

US5096881; AU650005 (B2)

Application Filed

3-15-1990

Assignee

University of Arkansas (Little Rock, AR)

Comments

Qamar A. Shams, Department of Electrical Engineering; Allen M. Hermann, Department of Physics; Zhengzhi Sheng, Department of Physics

Citation

Shams, Q. A., Hermann, A. M., & Sheng, Z. (1992). Preparation of a superconducting Tl2Ca2Ba2Cu3Ox thick film by processing a rolled Ca-Ba-Cu-O film in Tl2O3 vapor. Patents Granted. Retrieved from https://scholarworks.uark.edu/pat/244