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Influence of the microwave sintering in superconductor nanolaminated materials belong to MAX family

Grant number: 13/12729-5
Support type:Regular Research Grants
Duration: October 01, 2013 - September 30, 2015
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal Investigator:Ausdinir Danilo Bortolozo
Grantee:Ausdinir Danilo Bortolozo
Home Institution: Faculdade de Ciências Aplicadas (FCA). Universidade Estadual de Campinas (UNICAMP). Limeira , SP, Brazil
Assoc. researchers:Antonio Jefferson da Silva Machado ; Carlos Alberto Moreira dos Santos ; Francisco Moura Filho ; Márcio Martins Lage Júnior ; Wislei Riuper Ramos Osorio


The MAX phases are reported to be hexagonal with space group P63/mmc which are isomorphs to the Cr2AlC compound and represent a new solid class so called nanolaminate. These materials have common chemical formula M2AX where M is a transition metal, A an A-group element, and X is C and/or N. these materials are like others superconductors materials electronic and crystallographic point of view, as MgB2 and the High Temperature Superconductors - HTS. In the last years the proposer and co-authors have shown superconductivity in the MAX materials. In 2012 Eklund et al. showed a new ternary compound of the Nb2GeC stoichiometric. It is known that the properties these materials has a dependence as sintering method dependence. Then, this work a study about the microwave sintering in the nanolamiated carbide superconductors will shown. The compound will be characterized by X-ray diffraction in order to determine the kinetic of phase formation as well Rietvel methods analysis will done. The morphology and microstructure will do by Scanning Electron Microscopy (SEM). Transport properties will characterize by electrical resistivity, magnetization and heat capacity as a function of temperature. Finally, due to the fact there is vast carbide family will be made audacious attempt to produce a new compound such as Nb2GeN phase. (AU)

Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SATIZABAL, LUZ M.; COSTA, DIEGO; MORAES, PETERSON B.; BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R. Microstructural array and solute content affecting electrochemical behavior of Sn-Ag and Sn-Bi alloys compared with a traditional Sn-Pb alloy. Materials Chemistry and Physics, v. 223, p. 410-425, FEB 1 2019. Web of Science Citations: 0.
RODRIGUES, JOAO FELIPE Q.; COSTA, DIEGO; CONTIERI, RODRIGO J.; OSORIO, WISLEI R.; BORTOLOZO, AUSDINIR D. Microstructural characterization and mechanical behavior of an AgA1NbTiZn complex composition alloy produced using powder metallurgy (P/M). MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v. 744, p. 305-315, JAN 28 2019. Web of Science Citations: 0.
BONATTI, RODRIGO S.; SIQUEIRA, RAYANE R.; PADILHA, GIOVANA S.; BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R. Distinct Al-p/Si-p composites affecting its densification and mechanical behavior. Journal of Alloys and Compounds, v. 757, p. 434-447, AUG 15 2018. Web of Science Citations: 5.
BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R.; DE LIMA, BRUNO S.; DOS SANTOS, CARLOS ALBERTO M.; MACHADO, ANTONIO JEFFERSON S. Superconducting evidence of a processed Nb2GeC compound under a microwave heating. Materials Chemistry and Physics, v. 194, p. 219-223, JUN 15 2017. Web of Science Citations: 0.
BORTOLOZO, AUSDINIR D.; CREMASCO, ALESSANDRA; FLORIANO, RICARDO; CONTIERI, RODRIGO J. Effects of microwave heating in nanolaminated Nb2GeC synthesis. CERAMICS INTERNATIONAL, v. 42, n. 14, p. 16343-16348, NOV 1 2016. Web of Science Citations: 1.
BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R.; DOS SANTOS, CARLOS ALBERTO M.; MACHADO, ANTONIO JEFFERSON S. Woodard-Cody anomalous resistivity in a Nb5Ge3C0.3 superconductor compound. PHYSICA B-CONDENSED MATTER, v. 494, p. 82-85, AUG 1 2016. Web of Science Citations: 0.
BORTOLOZO, AUSDINIR D.; OSORIO, WISLEI R.; OLIVEIRA, CELIO J. V.; DOS SANTOS, CARLOS ALBERTO M.; MOURA FILHO, FRANCISCO; MACHADO, ANTONIO JEFFERSON S. Improvement on the melt-texturing performance of a (Y,Ta)(0.5)BaO3-YBa2Cu3Oy composite with superconductor applications. CERAMICS INTERNATIONAL, v. 41, n. 1, A, p. 843-848, JAN 2015. Web of Science Citations: 0.

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