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Comparative study of sintering temperature of MgB2 superconductor doped with SiC

Grant number: 07/00067-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): March 01, 2007
Effective date (End): December 31, 2007
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal researcher:Dayse Iara dos Santos
Grantee:Anne Hitomi Yonamine
Home Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil

Abstract

Although it presents a medium transition temperature close to 40 K, magnesium diboride is of great importance for the industries and it has given rise to many articles published in the most journals on this subject. In favor of MgB2 industrial application are the facts that it is a very easy working material and it presents a simple kinetics of reaction. Besides, the material and the processing costs are very low compared to the ceramic high temperature superconductors. In spite of all that, the intermetallic superconductor presents a relatively low critical current density, mainly when submitted to high magnetic fields. The doping with nanoparticles has shown to be one of the most promising techniques to improve its capacity of carrying electrical current and has been intensively studied. In this project MgB2 pellets are prepared with the aim of studying the effects of the sintering temperature on SiC doped magnesium diboride.

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