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dc.contributor.advisorYunasfi
dc.contributor.advisorSembiring, Manis
dc.contributor.authorRahmy, Putri Astari
dc.date.accessioned2022-12-27T04:34:22Z
dc.date.available2022-12-27T04:34:22Z
dc.date.issued2015
dc.identifier.urihttps://repositori.usu.ac.id/handle/123456789/78089
dc.description.abstractHas done research on the synthesis and characterization of Ni1+xFe2-xO4 materials as electromagnetic wave absorber material (x = 0 ; 0,25 ; 0,5 ; 0,75 and 1). Manufacture of Nickel Ferrite material is synthesized by coprecipitation method and mixed by solid state reaction. The process is milling for 5 hours, drying at temperature of 110oC for 5 hours and sintering at temperature 1000oC for 5 hours. XRD, SEM-EDS, VSM and VNA use for characterization. Single phase identification visible by XRD, the structure of morphology has been homogeneous visible by SEM-EDS, magnetic properties visible by VSM and electromagnetic wave absorption visible by VNA. Characterization results showed Nickel Ferrite phase is formed with spinel structure. The effect of the concentration Ni and Fe on Nickel Ferrite magnetic properties that originally made soft magnetic into hard magnetic. But the optimum variation optained at x = 0,5 which is characterized by the value of coertivitas field (Hc) is the largest 261 Oe and the magnetic remanent (Mr) big there are 11,3 emu/gr. VNA (Vector Network Analyzer) characterization show the ability electromagnetic wave absorption of -27 dB occurs at a frequency of 10,91 GHz. This material can absorb electromagnetic wave by 80 %.en_US
dc.language.isoiden_US
dc.publisherUniversitas Sumatera Utaraen_US
dc.subjectNickel Ferriteen_US
dc.subjectStructure Crystalen_US
dc.subjectMagnetic Propertiesen_US
dc.subjectElectromagnetic Wave Absorptionen_US
dc.titleSintesis dan Karakterisasi Bahan Ni1+xfe2-xo4 (X = 0 ; 0,25 ; 0,5 ; 0,75 Dan 1) Sebagai Bahan Absorber Gelombang Elektromagnetiken_US
dc.typeThesisen_US
dc.identifier.nimNIM110801019
dc.identifier.nidnNIDN0019116703
dc.identifier.nidnNIDN0029115501
dc.identifier.kodeprodiKODEPRODI45201#Fisika
dc.description.pages107 Halamanen_US
dc.description.typeSkripsi Sarjanaen_US


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