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dc.creatorRibić-Zelenović, L.
dc.creatorCirović, N.
dc.creatorSpasojević, M.
dc.creatorMitrović, N.
dc.creatorMaricić, A.
dc.creatorPavlović, Vladimir
dc.date.accessioned2020-12-17T20:29:49Z
dc.date.available2020-12-17T20:29:49Z
dc.date.issued2012
dc.identifier.issn0254-0584
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/2958
dc.description.abstractA nanostructured Ni-Fe-W powder was obtained by electrodeposition from ammonium citrate electrolyte within the current density range of 500-1000 mA cm(-2) at the electrolyte temperature of 50 degrees C -70 degrees C. XRD analysis shows that the powder contains an amorphous matrix having embedded nanocrystals of the FCC solid solution of iron and tungsten in nickel, with an average crystal grain size of 3.4 nm, a high internal microstrain value and a high density of chaotically distributed dislocations. EDS analysis exhibits that the chemical composition of the Ni-24%Fe-11%W powder does not depend upon current density and electrolyte temperature due to the diffusion control of the process of code-position of nickel, iron and tungsten. SEM micrographs show that the electrodeposition results in the formation of two particle shapes: large cauliflower-like particles and small dendrite particles. The cauliflower-like particles contain deep cavities at hydrogen evolution sites. Cavity density increases with increasing deposition current density. Smaller powder particles are formed at higher temperatures and at higher current densities. During the first heating, relative magnetic permeability decreases reaching the Curie temperature at about 350 degrees C and after cooling exhibits a 12% increase due to the performed relaxation process. Following the second heating to 500 degrees C, the magnetic permeability of the powder is about 5% lower than that of the as-prepared powder due to crystallization of the amorphous phase of the powder and the crystal grain growth in FCC phase.en
dc.publisherElsevier Science Sa, Lausanne
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172057/RS//
dc.rightsrestrictedAccess
dc.sourceMaterials Chemistry and Physics
dc.subjectNanostructuresen
dc.subjectElectrochemical depositionen
dc.subjectEnergy dispersive analysis of X-rays (EDS)en
dc.subjectThermomagnetic effectsen
dc.titleMicrostructural properties of electrochemically prepared Ni-Fe-W powdersen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage219
dc.citation.issue1
dc.citation.other135(1): 212-219
dc.citation.rankM21
dc.citation.spage212
dc.citation.volume135
dc.identifier.doi10.1016/j.matchemphys.2012.04.061
dc.identifier.scopus2-s2.0-84861845201
dc.identifier.wos000306034500032
dc.type.versionpublishedVersion


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