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In this paper,the oriented M-type barium ferrite(BaM) thick films with different thicknesses are prepared by tape casting.It is found that the crystallographic alignment degree(f),the pore and the squareness ratio(Mr/Ms) are not affected by the thickness of the film.XRD and SEM results show that the thick film has hexagonal morphology with a crystal texture of c-axis grains perpendicular to film plane.The hysteresis curve indicates that the BaM thick film exhibits a self-biased property with a remanent magnetization of 3.30 T,a squareness ratio(Mr/Ms) of 0.81,and a coercivity of 0.40 T.The results show that the BaM thick film has potential for use in self-biasing microwave devices,and also proves that the tape casting technique is capable of fabricating high-quality barium ferrite films,thus providing a unique opportunity to realize the large area production of thick film.
In this paper, the oriented M-type barium ferrite (BaM) thick films with different thicknesses are prepared by tape casting. It is found that the crystallographic alignment degree (f), the pore and the squareness ratio (Mr / Ms) are not affected by the thickness of the film. XRD and SEM results show that the thick film has hexagonal morphology with a crystal texture of c-axis grains perpendicular to the film plane. hysteresis curve indicates that the BaM thick film exhibits a self-biased property with a remanent magnetization of 3.30 T, a squareness ratio (Mr / Ms) of 0.81, and a coercivity of 0.40 T.The results show that the BaM thick film has potential for use in self-biasing microwave devices, and also proves that the tape casting technique is capable of fabricating high-quality barium ferrite films, thereby providing a unique opportunity to realize the large area production of thick film.