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dc.contributor.authorHadjiafxenti, A.en
dc.contributor.authorGunduz, I. E.en
dc.contributor.authorKyratsi, Theodoraen
dc.contributor.authorDoumanidis, C. C.en
dc.contributor.authorRebholz, Clausen
dc.creatorHadjiafxenti, A.en
dc.creatorGunduz, I. E.en
dc.creatorKyratsi, Theodoraen
dc.creatorDoumanidis, C. C.en
dc.creatorRebholz, Clausen
dc.date.accessioned2019-05-06T12:23:41Z
dc.date.available2019-05-06T12:23:41Z
dc.date.issued2013
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/48399
dc.description.abstractSelf-propagating reactions in compacted pellets of continuously low-energy ball-milled aluminium (Al) and nickel (Ni) powders at a composition corresponding to AlNi3 were investigated. The formation of a bi-modal structure with nanoscale lamellae of Al and Ni surrounding thicker Ni layers was observed. The milled powder sizes decreased for milling durations longer than 4 h, but the pellet green densities remained mostly constant for longer than 2 h of milling. The ignited pellets observed using high-speed optical and infrared imaging revealed that the thermal wave velocity, maximum reaction temperature, ignition initiation duration and ignition temperature decreased with increasing milling times due to solid-state diffusion. X-Ray Diffraction (XRD) analysis after ignition tests showed that the AlNi3 amount increased with milling time. Thermal analysis using interrupted Differential Scanning Calorimetry (DSC) in combination with XRD revealed that the ball-milled pellets have similarities to nanoscale magnetron sputtered multilayer foils in terms of phase formation sequence and exothermic peak shifts. © 2013 Elsevier Ltd. All rights reserved.en
dc.language.isoengen
dc.sourceVacuumen
dc.subjectWave propagationen
dc.subjectNanotechnologyen
dc.subjectPowdersen
dc.subjectThermoanalysisen
dc.subjectBall millingen
dc.subjectMilling (machining)en
dc.subjectMechanical alloyingen
dc.subjectNickelen
dc.subjectDifferential scanning calorimetryen
dc.subjectPelletizingen
dc.subjectIgnitionen
dc.subjectNickel aluminidesen
dc.subjectPhase formation sequenceen
dc.subjectSelf propagating reactionen
dc.subjectBi-modal structuresen
dc.subjectIgnition temperaturesen
dc.subjectInfrared imagingen
dc.subjectNickel aluminideen
dc.subjectReaction characteristicsen
dc.subjectReaction temperatureen
dc.subjectSolid-state diffusionen
dc.subjectThermal manufacturingen
dc.titleExothermic reaction characteristics of continuously ball-milled Al/Ni powder compactsen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.vacuum.2013.03.004
dc.description.volume96
dc.description.startingpage73
dc.description.endingpage78
dc.author.facultyΠολυτεχνική Σχολή / Faculty of Engineering
dc.author.departmentΤμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering
dc.type.uhtypeArticleen
dc.contributor.orcidKyratsi, Theodora [0000-0003-2916-1708]
dc.description.totalnumpages73-78
dc.gnosis.orcid0000-0003-2916-1708


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