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dc.contributor.advisorFlinn, Brianen_US
dc.contributor.authorWang, Ireneen_US
dc.date.accessioned2012-09-13T17:36:05Z
dc.date.available2015-12-14T17:55:53Z
dc.date.issued2012-09-13
dc.date.submitted2012en_US
dc.identifier.otherWang_washington_0250O_10663.pdfen_US
dc.identifier.urihttp://hdl.handle.net/1773/20802
dc.descriptionThesis (Master's)--University of Washington, 2012en_US
dc.description.abstractElectrodeposited nanolaminated copper-nickel alloys (Cu-Ni) exhibit excellent mechanical properties due to their modulated structure and nanocrystalline microstructure. X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray spectroscopy were used to characterize the composition, grain size, phases, and laminate structure of a nanolaminated deposit to explore structure-process-property relationships. The processing method of interest was pulse current electrodeposition of Cu-Ni a rotating disk electrode (RDE) with increased rotation speed during deposition of Cu-rich layers. Although copper content was enhanced in this way, it also caused macroscopic swirls in the deposit's surface, which were reflected microstructurally as Cu-rich streaks, non-planar layers, and other inhomogeneous morphology in the nanolaminate coating. Bulk composition of the nanolaminate was calculated from XRD spectra as being over 67wt%Ni overall, with over 91wt% Ni in Ni-rich layers and over 43wt% Ni in Cu-rich layers. EDS data of the same deposit differed significantly from these values, suggesting an overall composition closer to 55 wt% Ni, with a Ni-rich layer composition of 81 wt% Ni and 8.4 wt% Ni in the Cu-rich layers. Grain sizes of 15.8-22.3 nm were calculated for the nanolaminated deposit compared to 13-19 nm grains in a monolithic Ni-rich deposit of Cu-Ni.en_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_USen_US
dc.rightsCopyright is held by the individual authors.en_US
dc.subjectcharacterization; Cu-Ni; EDS; nanolaminate; SEM; XRDen_US
dc.subject.otherMaterials Scienceen_US
dc.subject.otherEngineeringen_US
dc.subject.otherMaterials science and engineeringen_US
dc.titleMaterial Characterization of Electrodeposited Copper-Nickel Nanolaminated Alloy by SEM, EDS, and XRDen_US
dc.typeThesisen_US
dc.embargo.termsRestrict to UW for 2 years -- then make Open Accessen_US


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