Growth and microstructure evolution of the Nb2Al-Al 3Nb eutectic in situ composite

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dc.contributor.authorRIOS, C. T.
dc.contributor.authorFERRANDINI, P. L.
dc.contributor.authorMILENKOVIC, V.
dc.contributor.authorCARAM, R.
dc.date.accessioned2022-01-12T22:05:51Z
dc.date.available2022-01-12T22:05:51Z
dc.date.issued2005-03-05
dc.description.abstractIn situ composite materials obtained by directional growth of eutectic alloys usually show improved properties, that make them potential candidates for high temperature applications. The eutectic alloy found in the Al-Nb system is composed of the two intermetallic phases Al3Nb (D022) and Nb2Al (D8b). This paper describes the directional solidification of an Al-Nb eutectic alloy using a Bridgman type facility at growth rates varying from 1.0 to 2.9 cm/h. Longitudinal and transverse sections of grown samples were characterized regarding the solidification microstructure by using optical and scanning electron microscopy, energy dispersive spectroscopy (EDS) and X-ray diffraction. Despite both phases being intermetallic compounds, the eutectic microstructure obtained was very regular. The results obtained were discussed regarding the effect of the growth rate on the microstructure, lamellar-rod transition and variation of phase volume fraction. © 2004 Elsevier Inc. All rights reserved.
dc.description.firstpage187
dc.description.issuenumber3
dc.description.lastpage193
dc.description.volume54
dc.identifier.citationRIOS, C. T.; FERRANDINI, P. L.; MILENKOVIC, V.; CARAM, R. Growth and microstructure evolution of the Nb2Al-Al 3Nb eutectic in situ composite. Materials Characterization, v. 54, n. 3, p. 187-193, March, 2005.
dc.identifier.doi10.1016/j.matchar.2004.08.017
dc.identifier.issn1044-5803
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4368
dc.relation.ispartofMaterials Characterization
dc.rightsAcesso Restrito
dc.subject.otherlanguageA. composites
dc.subject.otherlanguageA. intermetallic compounds
dc.subject.otherlanguageB. crystal growth
dc.subject.otherlanguageC. electron microscopy
dc.subject.otherlanguageD. microstructure
dc.titleGrowth and microstructure evolution of the Nb2Al-Al 3Nb eutectic in situ composite
dc.typeArtigo
fei.scopus.citations15
fei.scopus.eid2-s2.0-14544282814
fei.scopus.subjectEutectic temperature
fei.scopus.subjectLamellar array
fei.scopus.subjectTwo phase rods
fei.scopus.subjectX-ray emission
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=14544282814&origin=inward
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