Changes in structural, magnetic and magnetocaloric properties due to homogenization annealing in Ni54Mn19Ga27

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dc.contributor.buuauthorTekgül, Atakan
dc.contributor.buuauthorŞarlar, Kağan
dc.contributor.buuauthorKüçük, İlker
dc.contributor.departmentUludağ Üniversitesi/Fen-Edebiyat Fakültesi.tr_TR
dc.contributor.orcid0000-0001-6737-3838
dc.contributor.orcid0000-0002-8871-2357
dc.contributor.researcheridHWM-7283-2023
dc.contributor.researcheridB-8159-2016
dc.contributor.researcheridJJU-8757-2023
dc.contributor.scopusid37462175100tr_TR
dc.contributor.scopusid55550817200tr_TR
dc.contributor.scopusid6602910810tr_TR
dc.date.accessioned2024-03-22T08:37:43Z
dc.date.available2024-03-22T08:37:43Z
dc.date.issued2019-01-01
dc.description.abstractStructural and magnetic transformations in the Heusler system Ni54Mn19Ga27 due to different annealing time are studied by X-ray diffraction (XRD) and magnetization measurements. The developing of inter-martensitic and second order phase transition are investigated as a function of the annealing time. Analysis of the XRD data reveals that the austenite state has an L21 structure, whereas the structures of the martensite is a 14M (tetragonal) and the alloy crystallizes in the mixture phase at room temperature. In magnetic measurements, these martensite and austenite phases are ferromagnetic and due to ferromagnetic exchange caused different Curie temperatures for the austenitic and martensitic states in the sample with as prepared, 0.5 and 1 h except 5 h. The saturation magnetization changed from 35 to 68 A m2 kg−1 and the coercivity of these decreased from 1.8 to 0.3 mT as a function of annealing time. And also, the magnetic entropy change was determined to be 2.4 J kg−1 K−1 for as-prepared sample and 5.4 J kg−1 K−1 for 5 h sample. At 2 T magnetic field, the calculated relative cooling power (RCP) values for all alloys were found to be 85.8, 113.8, 120.8, 169.1 J kg−1 as annealing time increase. © 2018 Elsevier B.V.en_US
dc.identifier.citationTekgül, A. vd. (2019). "Changes in structural, magnetic and magnetocaloric properties due to homogenization annealing in Ni54Mn19Ga27". Journal Of Magnetism And Magnetic Materials, 469,183-188.en_US
dc.identifier.doihttps://doi.org/10.1016/j.jmmm.2018.08.056
dc.identifier.endpage188tr_TR
dc.identifier.issn0304-8853
dc.identifier.issn1873-4766
dc.identifier.pubmed21393731tr_TR
dc.identifier.scopus2-s2.0-85052314083tr_TR
dc.identifier.startpage183tr_TR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S030488531830893X
dc.identifier.urihttps://hdl.handle.net/11452/40581
dc.identifier.volume469tr_TR
dc.identifier.wos000447147100030
dc.indexed.pubmedPubMeden_US
dc.indexed.scopusScopusen_US
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.collaborationYurt içitr_TR
dc.relation.journalJournal Of Magnetism And Magnetic Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.relation.tubitak1929B011600025
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHeusler alloysen_US
dc.subjectAnnealing timeen_US
dc.subjectMagnetocaloric effecten_US
dc.subjectCurie temperatureen_US
dc.subjectRelative cooling poweren_US
dc.subjectNi-mn-gaen_US
dc.subjectShape-memory alloysen_US
dc.subjectHeusler alloysen_US
dc.subjectSingle-crystalsen_US
dc.subjectTransitionsen_US
dc.subjectMaterials scienceen_US
dc.subjectPhysicsen_US
dc.subjectPhysicsen_US
dc.subjectElectromagnetismen_US
dc.subjectMagnetocaloric effecten_US
dc.subjectAusteniteen_US
dc.subjectAustenitic transformationsen_US
dc.subjectCoolingtr_TR
dc.subjectCurie temperaturetr_TR
dc.subjectFerromagnetic materialsen_US
dc.subjectFerromagnetismen_US
dc.subjectManganese alloysen_US
dc.subjectGallium alloysen_US
dc.subjectMagnetocaloric effectsen_US
dc.subjectMartensiteen_US
dc.subjectMartensitic transformationsen_US
dc.subjectMeteorologyen_US
dc.subjectSaturation magnetizationen_US
dc.subjectTernary alloysen_US
dc.subjectX ray diffractionen_US
dc.subjectAnnealing timeen_US
dc.subjectHeusler alloysen_US
dc.subjectHomogenization annealingen_US
dc.subjectMagnetic transformationsen_US
dc.subjectMagnetization measurementsen_US
dc.subjectMagnetocaloric propertiesen_US
dc.subjectSecond-order phase transitionen_US
dc.subjectRelative cooling poweren_US
dc.subject.scopusManganese; Martensitic Transformations; Magnetocaloric Effectsen_US
dc.subject.wosMaterials science, multidisciplinaryen_US
dc.subject.wosPhysics, condensed matteren_US
dc.titleChanges in structural, magnetic and magnetocaloric properties due to homogenization annealing in Ni54Mn19Ga27en_US
dc.typeArticleen_US

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