Pb0.92La0.08(Zr0.65Ti0.35) o.98O3 (PLZT) nanosized powder was prepared from the corresponding nitrate alnd H2O2 by thermal decomposition of the peroxide. FT-IR, DTA-TG, XRD, TEM, and chemical analyses indicated that: ...Pb0.92La0.08(Zr0.65Ti0.35) o.98O3 (PLZT) nanosized powder was prepared from the corresponding nitrate alnd H2O2 by thermal decomposition of the peroxide. FT-IR, DTA-TG, XRD, TEM, and chemical analyses indicated that: (l) Peroxide precursor of PLZT was composed of Pbo.92La0.08 (Zr0.65Ti0.35)0.98O2 (O2) 3H2O; (2) PLZT started to form at 5500C, but PbO and PbZro3 still existed; (3) homogeneous tetragonal crystals of PLZT were formed at 7000C, with average particle diameter Of 22nm; (4) the sizes of the crystals increased with increasing calcination temperatures, crystals of PLZT were formed at 8500C with average particle diameter of 56nm.展开更多
Nanocrystalline Pb1-1.5xLaZr0.5Ti0.5O3 (x = 0.01-0.06, PLZT) powders with particle size from 30 to 150 nm were hydrothermally synthesized from the gets under mild conditions. The reaction conditions such as La content...Nanocrystalline Pb1-1.5xLaZr0.5Ti0.5O3 (x = 0.01-0.06, PLZT) powders with particle size from 30 to 150 nm were hydrothermally synthesized from the gets under mild conditions. The reaction conditions such as La content, reaction temperature and time were studied in detail and optimal conditions were established for synthesizing PLZT powders with different La contents. The effects of La content, alkali concentration, reaction temperature and time on the particle size were studied.展开更多
文摘Pb0.92La0.08(Zr0.65Ti0.35) o.98O3 (PLZT) nanosized powder was prepared from the corresponding nitrate alnd H2O2 by thermal decomposition of the peroxide. FT-IR, DTA-TG, XRD, TEM, and chemical analyses indicated that: (l) Peroxide precursor of PLZT was composed of Pbo.92La0.08 (Zr0.65Ti0.35)0.98O2 (O2) 3H2O; (2) PLZT started to form at 5500C, but PbO and PbZro3 still existed; (3) homogeneous tetragonal crystals of PLZT were formed at 7000C, with average particle diameter Of 22nm; (4) the sizes of the crystals increased with increasing calcination temperatures, crystals of PLZT were formed at 8500C with average particle diameter of 56nm.
文摘Nanocrystalline Pb1-1.5xLaZr0.5Ti0.5O3 (x = 0.01-0.06, PLZT) powders with particle size from 30 to 150 nm were hydrothermally synthesized from the gets under mild conditions. The reaction conditions such as La content, reaction temperature and time were studied in detail and optimal conditions were established for synthesizing PLZT powders with different La contents. The effects of La content, alkali concentration, reaction temperature and time on the particle size were studied.
