Structural characterization of low temperature synthesized SrFe12O19

Effect of Fuel on the Synthesis, Structural, and Magnetic Properties of M-Type Hexagonal SrFe12O19 Nanoparticles

“…440 and 590 cm −1 characteristic of hexagonal ferrites are well formed. The IR spectral data of the final SrM samples are in good agreement with the data reported in literature[25]. No absorption around 1400-1700 cm −1 corresponds to the total absence of residual carbon in the samples suggesting that the carbon is totally burnt away during self-combustion.Absorption band at 438-440 cm −1 (ν 2 ) corresponds to the assignment of Fe-O bending by Fe-O 4 and Fe-O stretching by Fe-O 6 , whereas the band in the range 598-600 cm −1 (ν 1 ) corresponds to the Fe-O stretching by Fe-O 4…”

Synthesis and Magnetic Properties of Conventional and Microwave Calcined Strontium Hexaferrite Powder

“…The particles are hexagonal platelets and well crystalline strontium ferrite, diameters are in the range of 40 nm to 70 nm. This type of shape is usually observed for BaFe 12 O 19 or SrFe 12 O 19 obtained by sol-gel process [4,15]. The morphology of the microwave calcined powder samples reveal smaller particles compared to the conventionally calcined powder.…”

“…Compared with spinel ferrite, magnetoplumbite ferrites, strontium ferrite have attracted more scientific research in recent years due to their high uniaxial magnetic anisotropy, high saturation magnetization and high coercivity [3,4]. In order to get homogeneous ferrite, several techniques have been used in the preparation of Sr hexaferrite, such as the chemical co precipitation [5], hydrothermal [6], sol-gel [7,8], micro emulsion [9], and citrate precursor [10] have been developed. Therefore, the preparation of SrFe 12 O 19 having high purity, ultrafine size, good dispersion and excellent magnetism has been the focus of recent research [7,11].…”

Morphology control of hexagonal strontium ferrite micro/nano-crystals

“…[1][2][3] SrFe 12 O 19 presents a broad range of significant functionalities, such as excellent magnetic properties, superior chemical stability and outstanding magnetocrystalline anisotropy, which make its comprehensive applications in permanent magnets, magnetic recordings and microwave devices. [4][5][6] Meanwhile, room temperature magnetoelectric coupling was discovered in hexaferrites recently, leading to a promising device application of magnetoelectric devices.…”

“…In this report, we demonstrate the morphology control of single phase hexagonal strontium ferrite micro/nanocrystals by changing ball milling time. We also obtained high performance SrFe 12 3 (Fe/Sr mole ratio = 11) were mixed by high energy ball milling method using a planetary ball mill with different mill time (2h-10h), with the weight ratio of the ball-to-powder of 40:1 and the rotation speed was 350 rpm. Distilled water and ethanol were used as the solvent and the surfactant during milling.…”