Please use this identifier to cite or link to this item:
DC FieldValueLanguage
dc.contributor.authorCosta, B. F. O.-
dc.contributor.authorCaër, G. Le-
dc.contributor.authorMalaman, B.-
dc.contributor.authorBatista, A. C.-
dc.identifier.citationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:1 (2007) 404-407en_US
dc.description.abstract57Fe Mössbauer spectroscopy and X-ray diffraction were used to study the structural changes induced by ball milling a coarse-grained Fe48.1V51.9 at% sigma phase in a vibratory mill in argon with a frequent gas renewal. The sigma phase transforms into a bcc alpha phase till 140 h of milling. Mössbauer spectroscopy also shows the presence of an amorphous phase. Further, X-ray diffraction and Mössbauer spectroscopy reveals the presence of a corundum type oxide (V1-xFex)2O3 and of a spinel FeV2O4 in samples milled for 140 h and longer. Mössbauer spectroscopy clearly shows that the spinel phase starts to form after 140 h of milling. Oxidation is progressive and occurs first via an unmixing process which deprives the FeV bcc matrix of vanadium atoms.en_US
dc.subjectMössbauer spectroscopyen_US
dc.subjectX-ray diffractionen_US
dc.subjectFe-V alloysen_US
dc.subjectBall millingen_US
dc.subjectSpinel structureen_US
dc.titleMössbauer spectroscopy and X-ray diffraction studies of ball-milling-induced transformations of a near-equiatomic FeV sigma phase: Influence of oxygenen_US
item.fulltextCom Texto completo-
item.grantfulltextopen- de Ciências e Tecnologia, Universidade de Coimbra- de Coimbra- for Physics, University of Coimbra-
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais
Files in This Item:
File Description SizeFormat
filed99e909d355545a8b08247bc8b755bff.pdf236.17 kBAdobe PDFView/Open
Show simple item record

Page view(s)

checked on Aug 5, 2020

Download(s) 50

checked on Aug 5, 2020

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.