Artigo
Monofilamentary Ag/Bi:2212 tapes - Effects of silver powder addition
Registro en:
Materials Science Forum, v. 498-499, p. 316-318.
0255-5476
10.4028/www.scientific.net/MSF.498-499.316
WOS:000233984500050
2-s2.0-35248899445
8506867595279427
Autor
Dos Santos, Dayse Iara [UNESP]
Rodrigues Júnior, Durval
Rubo, Elisabete Ap. A. [UNESP]
Cursino, Eliana
Resumen
The Bi-Sr-Ca-Cu-O system has been one of the most studied superconducting ceramic materials for industry applications. The most of the studies with this aim are on silver/ceramic composites, due to the benefits and great compatibility of this metal with the oxide. Tapes made by the powder in tube (PIT) method have been successfully tested in pilot power plants in many countries but in Brazil. In this paper, 5, 10, and 20-wt% silver powders are introduced to compose the core of the tape along with the Bi:2212 ceramic powder. The results of electrical experiments are compared with those made with no silver addition Ag tapes. The best current density, at 60 K and no applied magnetic field, was found for the 10-wt% silver proportion, doubling the value obtained for the tape with no silver in the core. Departamento de Física Universidade Estadual Paulista, C. P. 473, CEP 17015 970 Bauru, SP Departamento de Engenharia de Materiais Faculdade de Engenharia Química de Lorena, C. P. 116, CEP 12600 000 Lorena,SP Departamento de Física Universidade Estadual Paulista, C. P. 473, CEP 17015 970 Bauru, SP