Measurements of Microhardness and Thermal and Electrical Properties of the Binary Zn-0.7wt.%Cu Hypoperitectic Alloy

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dc.authorid0000-0001-8746-8770
dc.authorid0000-0002-6830-8349
dc.contributor.authorKaya, H.
dc.contributor.authorBoyuk, U.
dc.contributor.authorEngin, S.
dc.contributor.authorCadirli, E.
dc.contributor.authorMarasli, N.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2010
dc.departmentNiğde ÖHÜ
dc.description.abstractZn-0.7wt.%Cu hypoperitectic alloys were directionally solidified upwards with different temperature gradients (3.85 K/mm to 9.95 K/mm) at a constant growth rate (0.042 mm/s), and with different growth rates (0.0083 mm/s to 0.436 mm/s) at a constant temperature gradient (3.85 K/mm), using a Bridgman-type growth apparatus. Measurements of microhardness of the directionally solidified samples were carried out. The dependence of micro- hardness (HV) on growth rate (V) and temperature gradient (G) was analyzed. According to these results, it has been found that, for increasing values of G and V, the value of HV increases. Variations of electrical resistivity (rho) and electrical conductivity (sigma) for cast samples with temperature from 300 K to 670 K were also measured by using a standard direct-current (DC) four-point probe technique. The variation of the Lorenz coefficient with temperature for the Zn-0.7wt.%Cu hypoperitectic alloy was determined using the measured values of electrical conductivity and thermal conductivity. The enthalpy of fusion for the same alloy was determined by means of differential scanning calorimetry (DSC) from the heating trace during the transformation from liquid to solid.
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK) [107T095]; Scientific and Technical Research Council of Turkey (TUBITAK)
dc.description.sponsorshipThis research was supported financially by the Scientific and Technical Research Council of Turkey (TUBITAK) under Contract No. 107T095. The authors are grateful to the Scientific and Technical Research Council of Turkey (TUBITAK) for their financial support.
dc.identifier.doi10.1007/s11664-009-1061-3
dc.identifier.endpage311
dc.identifier.issn0361-5235
dc.identifier.issue3
dc.identifier.scopus2-s2.0-77951023287
dc.identifier.scopusqualityQ3
dc.identifier.startpage303
dc.identifier.urihttps://dx.doi.org/10.1007/s11664-009-1061-3
dc.identifier.urihttps://hdl.handle.net/11480/4905
dc.identifier.volume39
dc.identifier.wosWOS:000274947700006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherSPRINGER
dc.relation.ispartofJOURNAL OF ELECTRONIC MATERIALS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectZn-Cu alloy
dc.subjectcellular microstructure
dc.subjectmicrohardness
dc.subjectelectrical conductivity
dc.subjectLorenz coefficient
dc.subjectenthalpy
dc.subjectspecific heat
dc.titleMeasurements of Microhardness and Thermal and Electrical Properties of the Binary Zn-0.7wt.%Cu Hypoperitectic Alloy
dc.typeArticle

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