国产成人亚洲精品无码青app,白丝紧致爆乳自慰喷水,国产疯狂女同互磨高潮在线观看,jizzjizz少妇亚洲水多

(Ba_1?xLa_x)(Ti_1?x/2Ca_x/2)O₃ (0.03???x???0.06) (BLTC) ceramics were prepared using a mixed oxides method. The structure, microstructure, and dielectric properties of BLTC were investigated by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, atomic force microscope, and dielectric measurements. Both symmetric (2?0?0) XRD peak indicative of cubicity and sharp 308?cm^?1 Raman band indicative of tetragonality are characteristics of pseudo-cubic symmetry of BLTC. The unit cell volume of BLTC increased linearly with x, satisfying Vegard’s law. A strong “Raman charge effect” appeared at 836?cm^?1 because of the aliovalent double substitution in BLTC. The x?=?0.03 sample because of its higher permittivity (ε′?=?～2000) and lower loss (tan δ?<?0.04) is a novel dielectric for X7R applications. The formation of defect complexes was responsible for the dielectric-temperature stability of BLTC.