Crystal structure and magnetic properties of barium ferrite synthesized using GSPC and HEBM

The effect of post annealing treatment on the citrate sol–gel derived nanocrystalline BaFe12O19 powder: structural, morphological, optical and magnetic properties

“…The M-H curve is depicted in Fig. 10 (Durmus et al 2011;Shang et al 2007;Vinod et al 2011;Mali and Ataie 2005;Birsoza et al 2010;Xu et al 2006;Sozeri et al 2012;Mali and Ataie 2004;Qiu and Gu 2006;Parkin et al 2001;Hong et al 2004;Rafique et al 2013;Castro et al 1997;Ounnunkad and Winotai 2006). The ratio M r /M s of the present BaFe 12 O 19 sample is found to be 0.543 which is comparable to the reported values (Shang et al 2007;Birsoza et al 2010).…”

“…Such a wasp-waist-like shape of the hysteresis loop was reported in the literature for the BaFe 12 O 19 phase (Mali and Ataie 2005;Wang et al 2007). Table 3 summarizes the room temperature magnetic properties of the hexagonal BaFe 12 O 19 phase materials obtained by sol-gel combustion methods (Durmus et al 2011;Shang et al 2007;Vinod et al 2011;Ataie 2004, 2005;Birsoza et al 2010;Xu et al 2006;Sozeri et al 2012;Qiu and Gu 2006;Parkin et al 2001;Hong et al 2004;Rafique et al 2013;Castro et al 1997;Ounnunkad and Winotai 2006). From this The main magnetic characteristics should be due to the high purity (1 % of impurities), the good crystalline state, and the small homogeneous size of the particles Castro et al…”

“…Powder XRD structural analysis (Shang et al 2007;Ataie 2004, 2005;Qiu and Gu 2006). According to Mali and Ataie (2005), the XRD pattern of their as-burnt powder indicates the presence of c-Fe 2 O 3 as a major phase and some other minor phases, namely a-Fe 2 O 3 , BaCO 3 , BaO 2 and BaFe 12 O 19 .…”

“…(Mali and Ataie 2005). Hitherto there have been several investigations reported for the citrate sol-gel processed BaFe 12 O 19 materials (Durmus et al 2011;Mali and Ataie 2005;Birsoza et al 2010;Xu et al 2006;Sozeri et al 2012;Mali and Ataie 2004;Qiu and Gu 2006). To obtain the BaFe 12 O 19 materials, different molar ratio of Ba:Fe:citricacid have been adopted (Durmus et al 2011;Xu et al 2006;Mali and Ataie 2004;Chen et al 2012;Ting and Wu 2010;Mali and Ataie 2005).…”

“…To obtain the BaFe 12 O 19 materials, different molar ratio of Ba:Fe:citricacid have been adopted (Durmus et al 2011;Xu et al 2006;Mali and Ataie 2004;Chen et al 2012;Ting and Wu 2010;Mali and Ataie 2005). According to the previous reports, the sol-gel processed materials are characterized by X-ray diffraction (Murthy et al 2012;Liu and Xiang 2010;Song et al 2010;Ping et al 2008;Ebrahimi et al 2012), thermal gravimetric analysis (Yu and Huang 2003;Yu and Liu 2006), Fouriertransform infrared, scanning electron microscope (Liu and Xiang 2010;Song et al 2010;Ebrahimi et al 2012), transmission electron microscope (Murthy et al 2012), magnetometer (Durmus et al 2011;Mali and Ataie 2005;Birsoza et al 2010;Xu et al 2006;Sozeri et al 2012;Mali and Ataie 2004;Qiu and Gu 2006) for quality, phase formation, thermal decomposition, surface morphology, and magnetic property of the synthesized BaFe 12 O 19 materials. From our recent near infrared (NIR) reflectivity study , the BaFe 12 O 19 material obtained by mechano-thermal process has been identified as NIR reflective color pigment due to its high NIR reflectivity in the region of wavelength 1750-2000 nm.…”