Ti^(4+)对PbZrO_3和Pb(Zr_(1-x)Ti_x)O_3粉体晶格结构的影响  

Effect of Ti^(4+) on Crystal Structure of PbZrO_3 and Pb(Zr_(1-x)Ti_x)O_3 Powder

作　　者：甄戌兰[1] 杨世源[1] 王军霞[1] 毕新利[1] 方岩[1] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010

出　　处：《中国粉体技术》2009年第5期30-32,共3页China Powder Science and Technology

基　　金：国家自然科学基金项目;编号:10476023;西南科技大学青年基金项目(06zx3125)

摘　　要：研究了Ti4+离子对PbZrO3和Pb(Zr1-xTix)O3粉体晶格结构的影响。利用固相反应法合成的PbZrO3和Pb(Zr0.95Ti0.05)O3粉体,从XRD、晶格常数和Raman光谱3个方面进行了分析。结果表明:PbZrO3和Pb(Zr0.95Ti0.05)O3均为钙钛矿结构,但较之PbZrO3,Pb(Zr0.95Ti0.05)O3的XRD谱各个峰位均向高角度轻微偏移;晶胞参数变小;Pb(Zr0.95Ti0.05)O3的Raman峰除在低频区向低频方向发生了偏移,而其余峰均向高频方向发生了偏移且部分峰有宽化现象。主要是由于Ti4+离子部分取代Zr4+离子进入PbZrO3晶格而形成Pb(Zr1-xTix)结构。The effect of Ti^4＋ ions on the crystal structure of PbZrO3 and Pb （Zr1-x Tix）O3 powder synthesized by the solid-state reaction method were studied. The effect of Ti^4＋ addition on the crystal structure of PbZrO3 and Pb （Zr0.95Ti0.05）O3 powder was analyzed and characterized by XRD, lattices parameter and Raman spectrum. The results indicated that PbZrO3 and Pb （Zr0.95Ti0.05）O3 powder showed the formation of perosvike phase. A small shift to high angle in the peak intensity position could be seen in the Pb （Zr0.95Ti0.05）03 and all the lattices parameter became smaller compared to PbZrO3. Except that the Raman peak in the low frequency shifted to the lower wave numbers,the others shifted to relatively higher wave numbers and a few peaks became broaden. The reason was that the substitution Ti^4＋ for Zr^4＋ in the PbZrO3 crystal lattice induced the formation of Pb（Zr-xTix）O3 .

关 键 词：粉体:晶格结构 固相反应 

分 类 号：TQ174[化学工程—陶瓷工业]