过氧化合物法PLZT纳米粉体的制备和表征 |
Preparation and Characterization of Nanosized Powder PLZT by Peroxide Method |
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摘要: |
关键词: 锆钛酸铅镧(PLZT) 过氧化合物前驱体 纳米粉体 |
基金项目: 国家自然科学基金资助项目(No.20073030) |
Abstract: Pb0.92La0.08(Zr0.65Ti0.35)0.98O3 (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 PLZTwas composed of Pb0.92La0.08(Zr0.65Ti0.35)0.98O2(O2)·3H2O; (2) PLZT started to form at 550℃, but PbO and PbZrO3 still existed; (3) homogeneous tetragonal crystals of PLZTwere formed at 700℃, with average particle diameter of 22nm; (4) the sizes of the crystals increased with increasing calcination temperatures, crystals of PLZTwere formed at 850℃ with average particle diameter of 56nm. |
Keywords: lead lanthanum zirconate titanate(PLZT) peroxide precursor nanosized powders |
投稿时间:2000-10-11 修订日期:2000-11-27 |
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赵文宽,方佑龄.过氧化合物法PLZT纳米粉体的制备和表征[J].无机化学学报,2001,17(2):292-296. |
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