采用溶胶-凝胶法制备 Pb (Zr0．95 Ti0．05)O3(简称PZT(95/5))反铁电纳米粉,差热分析确定干燥后粉体的煅烧温度范围为550~750℃.将干燥后粉体分别在550,600,650,750℃下煅烧,保温2 h,经XRD分析发现,随着煅烧温度的升高,主晶相的强度逐渐升高,杂质相的峰高逐渐减弱.当煅烧温度为750℃时,形成了完全的钙钛矿相.所制 PZT95/5粉体的平均粒径约100 nm.
PZT(95/5)antiferroelectric nanoscale powders were prepared by sol-gel process.550-750 ℃,calcina-tion temperature range of dried PZT(95/5)powder were identified by differential thermal analysis.Dried pow-ders were calcinated at 550,600,650,750 ℃,holding for 2 hours,respectively.XRD analysis showed that the strength of the main crystalline phase gradually increases,the impurity phase peak height decreases with the in-creasing of the calcination temperature.When calcinated at 750 ℃,single perovskite phase was formed and PZT95/5 powders size was about 100 nm.
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