Banca de DEFESA: DANYELLE PRISCILA DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : DANYELLE PRISCILA DA SILVA
DATA : 14/02/2017
HORA: 15:00
LOCAL: AUDITÓRIO DO DFTE
TÍTULO:

Experimental Study of the Binary System Samário Ferro

PALAVRAS-CHAVES:

Iron samarium binary system, Intermettalics compounds, Intermediates phases, metastable phase.

PÁGINAS: 85
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Física
RESUMO:

Studo were arc melt prepared alloys at the following concentrations:

 Sm30Fe70, Sm40Fe60, Sm50Fe50, Sm70Fe30 and Sm80Fe20. 

Subsequently, they were investigated by X-ray diffraction, metallography, 

Thermomagnetic and magnetometry. In these samples, three Intermediates:

 Sm2Fe17, SmFe3 and SmFe2. The network parameters And the Curie 

temperatures of these compounds were determined. The magnetic properties 

of the first three samples (Sm30Fe70, Sm40Fe60 and Sm50Fe50) were

 consistent with the proportion and magnetic characteristics Of the intermetallic 

compounds present. However, for the last two Samples (Sm70Fe30 and Sm80Fe20), 

the study indicated a possible formation Of metastable phases. There was also a 

dependence of the magnetic properties on the samarium concentration.

MEMBROS DA BANCA:
Presidente - 350830 - JOSE HUMBERTO DE ARAUJO
Externo à Instituição - JOÃO MARIA SOARES - UERN
Interno - 1675199 - SUZANA NOBREGA DE MEDEIROS