Formation of Metastable Disordered Ni3Al by Pulsed Laser-Induced Rapid Solidification

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Formation of Metastable Disordered Ni3Al by Pulsed Laser-Induced Rapid Solidification

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dc.contributor.author Manos, James T.
dc.contributor.author West, Jeffrey A.
dc.contributor.author Aziz, Michael
dc.date.accessioned 2009-04-30T13:29:07Z
dc.date.issued 1991
dc.identifier.citation West, Jeffrey A.,James T. Manos, and Michael J. Aziz. 1991. Formation of metastable disordered Ni3Al by pulsed laser-induced rapid solidification. Materials Research Society Symposia Proceedings 213: 859-864. en
dc.identifier.issn 0272-9172 en
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:2870604
dc.description.abstract Thin films of Ni<sub>3</sub> formed by co-evaporation onto insulating substrates form single phase fcc disordered lattice upon rapid solidification following excimer laser-induced melting with an interface velocity of ~4 m/s. Transmission Electron Microscopy (TEM) and x-ray diffraction (XRD) analyses exhibit no superlattice diffraction at room temperature. Resistivity measurements, indicating that the disordered phase has a higher resistivity and much smaller temperature coefficient at room temperature than the stable ordered (L1<sub>2</sub>) phase, permit us to monitor phase changes and ordering on a fast time-scale. Subsequent annealing recovers long-range order, with resistivity measurements indicating that reordering begins just below 300 degrees C. en
dc.description.sponsorship Engineering and Applied Sciences en
dc.language.iso en_US en
dc.publisher Materials Research Society en
dc.relation.isversionof http://www.mrs.org/s_mrs/sec.asp?CID=1727&DID=38980 en
dc.relation.hasversion http://www.seas.harvard.edu/matsci/people/aziz/publications/mja048.pdf en
dash.license LAA
dc.title Formation of Metastable Disordered Ni3Al by Pulsed Laser-Induced Rapid Solidification en
dc.relation.journal Materials Research Society Symposia Proceedings en
dash.depositing.author Aziz, Michael

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