Artículos de revistas
The changes on microstructure and electrical properties of Bi:2223/Ag composite as a function of the granulation and the content of the added silver powder
Materials Science Forum, v. 498-499, p. 388-393.
Universidade Estadual Paulista (UNESP)
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. In this paper we describe a systematic and comparative study on Ag/BSCCO composite, made by the citrate route, in which the ceramic pellets are sintered in the presence of silver powder using several proportions and having several granulations. It was observed that the introduction of fine (0.5 and 2 μm) silver powder in the proportions of 5 wt. % always implies in a better critical current density compared to the no silver pellet. According to the results, the silver powder in excess of 5 wt.% may not promote best electrical properties, depending on the size of the silver particles.
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S-nitrosothiols Containing Compositions And The Use Of Such Compositions For The Treatment Of Fatty Liver Diseases, Obesity And Other Diseases Associated With The Metabolic Syndrome And The Use Of Such Compositions Ganzarolli De Oliveira Marcelo[br]; Pereira De Souza Gabriela Frei[br]; Ganzarolli De Oliveira Fernand[br]; Souza De Oliveira Claudio Pint[br]; Velloso Licio Augosto[br]
Carrión, Juan E.; Hjelmstad Keith, D; LaFave, James M.