Weakly ferromagnetic microspheres bearing paramagnetic CrBO3 core and nonmagnetic polyvinylbutyral shell

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dc.contributor.authorÖztürk, Ödie;.F.
dc.contributor.authorTanyolac, D.
dc.contributor.authorÖzcan, S.
dc.contributor.authorZümreoglu-Karan, B.
dc.date.accessioned2025-01-27T18:53:08Z
dc.date.available2025-01-27T18:53:08Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA new class of core-shell microspheres was prepared through a modified solvent evaporation technique by coating chromium orthoborate (CrBO3) particles with a commercial resin, namely Mowital ®B30HH (polyvinyl butyral, PVB). Well-shaped spherical particles were obtained in diameters ranging from 40 to 420 ?m. The morphological, structural, thermal, and magnetic properties were characterized by SEM, FTIR, UV-Vis, VSM (Vibrating Sample Magnetometry), and thermal analysis techniques. Uncoated CrBO3 is paramagnetic at room temperature and antiferromagnetic at low temperatures (TN = 12 K) while PVB itself is nonmagnetic at room temperature. The results indicated that the microspheres having a paramagnetic core and nonmagnetic shell displayed weakly ferromagnetic properties at room temperature. The observed ferromagnetism was correlated with the particle size and higher saturation magnetization values were achieved with smaller microspheres. This unconventional magnetic behavior can be tuned by varying the particle size and may allow CrBO3/PVB microspheres to serve as a smart material in future applications. © 2009 John Wiley & Sons, Ltd.
dc.identifier.doi10.1002/pat.1368
dc.identifier.endpage1101
dc.identifier.issn1099-1581
dc.identifier.issue12
dc.identifier.scopus2-s2.0-75849165354
dc.identifier.scopusqualityQ2
dc.identifier.startpage1096
dc.identifier.urihttps://doi.org/10.1002/pat.1368
dc.identifier.urihttps://hdl.handle.net/20.500.12428/12597
dc.identifier.volume20
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofPolymers for Advanced Technologies
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250125
dc.subjectChromium orthoborate; Composites; Core-shell microspheres; Magnetic properties; Polyesters
dc.titleWeakly ferromagnetic microspheres bearing paramagnetic CrBO3 core and nonmagnetic polyvinylbutyral shell
dc.typeArticle

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