Spektra: Jurnal Fisika dan Aplikasinya
Vol 2 No 2 (2017): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 2 Nomor 2, Agustus 2017

PENGARUH SUBSTITUSI ION Ti-Zn TERHADAP SIFAT KEMAGNETAN dan SIFAT PENYERAPAN GELOMBANG ELEKTROMAGNETIK MATERIAL SISTEM BaFe12-xTix/2Znx/2O19

Nenni Nenni (Program Studi Fisika, FMIPA, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta 13220)
Mutia Delina (Program Studi Fisika, FMIPA, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta 13220)
Wisnu Ari Adi (Pusat Sains dan Teknologi Bahan Maju, BATAN Kawasan Puspiptek, Serpong, Tangerang 15314)
Yana Taryana (Pusat Penelitian Elektronika dan Telekomunikasi, LIPI Jl. Sangkuriang, Komplek LIPI, Kota Bandung, Jawa Barat 40135)



Article Info

Publish Date
31 Aug 2017

Abstract

Substitution of Ti+4 and Zn+2 ions on magnetic material BaFe12-xTix/2Znx/2O19 (x = 0 and 2) using the wet milling method has been performed. This research was conducted to get information the influence of Ti-Zn substitution on magnetic properties and its absorption. The magnetic material BaFe12-xTix/2Znx/2O19 is synthesized from a mixture of oxide materials, BaCO3, Fe2O3, TiO2 and ZnO. The mixture was milled for 5 hours, dried at 1000C then sintered at 10000C for 5 hours. The refinement result of the X-ray diffraction pattern shows that the sample has single phase BaFe12O19 with doping concentration of x = 0 and 2. The hysteresis curve shows that coercivity field value decreased in the sample with doping concentration of x = 2. The result of electromagnetic wave absorption shows that the substituted sample with Ti+4 and Zn+2 ions (doping concentration x = 2) has the highest absorption peak at a frequency of 11,2 GHz with reflection loss value (RL) of -24,3 dB. Electromagnetic wave absorption reaches 94% with sample thickness is about 1,0 mm. Therefore, the magnetic material BaFe12-xTix/2Znx/2O19 (x = 2) can be used for application of the electromagnetic wave absorber. Keywords: Substitution, BaFe12-xTix/2Znx/2O19, wet milling, reflection loss, electromagnetic wave absorber.

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