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0.57(Bi0.8La0.2)FeO3-0.43PbTiO3 (BLF-PT) ceramics were successfully prepared by sol-gel technique combined with solid-state reaction method. X-ray diffraction (XRD) results revealed that single crystallites with rhombohedral phase could be obtained at 600 °C for 2 h, which is 150 °C lower than that required to prepare single phase material with the same composition from solid-state reactions. The...
The lead selenide (PbSe) nanoparticles have been synthesized under ultrasonic/microwave co-irradiation. These PbSe nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and DSC. In the new routes, pure PbSe phase was synthesized using elemental Se and lead acetate as starting materials and ethylene glycol as solvent under ultrasound of 25 kHz, 1500 W and...
The processes for the physical vapor deposition (PVD) of Pb(Zr,Ti)O3 (PZT) thin films from two different composite oxide targets has been demonstrated. PZT thin films have been deposited by both PVD or sputter technique and standard sol-gel method. Half micron PZT films were deposited by both methods on identical substrates (Si[(100) 4 inch Cz wafer]/SiO2/Ti-TiO2/Pt) followed by sputter-deposited...
The lead telluride (PbTe) nanoparticles have been synthesized under ultrasonic/microwave co-irradiation. These PbTe nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR) and DSC.
In this research, by adding methyl alcohol/water solution with certain concentration into sol to hydrolysis directly and sintering the fresh gel directly, lead titanate ceramics doped with calcium are prepared by using calcium acetate as doper to prohibit the disadvantages contained in conventional sol-gel method, such as low hydrolytic rate, high sintering temperature, long preparation period. The...
Nd3+ doped PbZr0.52Ti0.48O3 (PNZT) nanopowders were prepared by sol-gel methods in ethylene glycol system. Neodymium nitrate was used as Nd3+ source. The reaction mechanisms of nanopowder preparing process from the sol were discussed through using FTIR, XRD, TG-DTA, and it was proved that the heating temperature of PNZT was 50degC-100degC higher than PZT. PNZT lattice structure was characterized...
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