Abstract

ABSTRACT Lead lanthanum zirconate titanate (PLZT) fibers, Pb1 - xLax(Zr1 - yTiy)1 − x/4 O3 were prepared using sol-gel technique with y = 0.35 and x as 0.09. Lead acetate, lanthanum nitrate, zirconium acetate and tetra isopropyl orthotitanate were used as the precursor materials to obtain a sol, which was concentrated to spinnable consistency by polymerizing in a rotary evaporator at 70°C. The gel fibers obtained via spinning method were calcined at 500°, 850° and 1200°C to get the ceramic fibers. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction, Thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) were used to characterize the fibers. X-ray analysis showed that pure perovskite phases were obtained at 850°C. The microstructure showed the presence of fibers with smooth structure.

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