The evolution during thermal treatment of the precursor obtained by a new method to synthezise barium hexaferrite by chemical coprecipitation is described; the method involves the precipitation froma strongly alkaline ferrate(V1) solution containing barium chloride. Barium hexaferrite may be formed by heating of the original superparamagnetic precursor at temperatures as low as 700QC as shown b...

By coupling two different magnetic materials inside a single composite nanoparticle, the shape of the magnetic hysteresis can be engineered to meet the requirements of specific applications. Sandwich-like composite nanoparticles composed of a hard-magnetic Ba-hexaferrite (BaFe12O19) platelet core in between two soft-magnetic spinel iron oxide maghemite (γ-Fe2O3) layers were synthesized using a ...

This paper describes the results of experiments on magnetization barium hexaferrite particles embedded in lyotropic liquid crystals. The carrier crystal medium was an aqueous solution a mixture sodium lauryl sulfate and lauric acid ratio 2/1. Barium were stabilized with two layers surfactant. first layer consisted oleic molecules. Second mix 1/1. process particle investigated by observing effec...

The effect of interactions on the magnetic relaxation of nanocrystalline hexagonal barium hexaferrite BaFe10.4Co0.8Ti0.8O19 is discussed. We had previously shown that according to the T ln(t/t0) scaling, an enhancement of the lowest-energy barriers was detected when demagnetizing interactions were dominant. Also, the Henkel plots obtained for particles of about 10 nm of mean diameter showed tha...

Analyzing the material composition of iron sand from Cilacap beach and Taluk Kuantan in Riau. In this research, synthesis barium M-Hexaferrite is made beach, research method, test was carried out using analysis with FTIR test. The characteristics that has an Fe content 86.53% does not carry refining. while 82.86% purified. Based on wave number value, BAM doped Cu best value highest transmittanc...

Abstract This study provides a comprehensive synthesis and meticulous examination of barium hexaferrite (BHF), titanate (BT), their respective nanocomposites, unveiling potential in specific applications, including electromagnetic interference shielding. The successful formation BHF BT was confirmed through Fourier-transform infrared (FTIR) spectroscopy X-ray diffraction (XRD) analyses, reveali...

Barium hexaferrite material as magnetic can be used for wave absorption applications. However, to make the absorber material, must soft material. For now, barium problem is still a hardmagnetic To form softmagnetic modified by doping Zn metal into hexeferite. The purpose of this study was determine Doping effect in on crystal size and properties. (BaFe12-xZnxO19) with variation x = 0, 0.4, 0.6,...