冲击合成PZT95/5的X射线电子能谱  

X-ray photoelectron spectroscopy study on shock-synthesized PZT95/5

作　　者：王军霞[1] 杨世源[1] 贺红亮[2] 王进[1] 刘雨生[2] 张福平[2] 梁晓峰[3] 

机构地区：[1]西南科技大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,四川绵阳621010 [2]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理国防科技重点实验室,四川绵阳621900 [3]西南科技大学分析测试中心,四川绵阳621010

出　　处：《爆炸与冲击》2010年第5期493-498,共6页Explosion and Shock Waves

基　　金：国家自然科学基金项目(10476023);中国工程物理研究院科学技术基金重点项目(2010A0201005);四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地开放基金项目(10zxfk26)~~

摘　　要：以Pb3O4、ZrO2和TiO2粉体为原料,利用柱面冲击波合成了单一的钙钛矿相Pb(Zr0.95Ti0.05)O3(即PZT95/5)粉体,用X射线衍射(XRD)和X射线电子能谱(XPS)对PZT的物相、元素化学态、分子结构和成分含量进行了表征。冲击合成粉体和制备陶瓷的XPS结果表明,除表面存在少量的吸附氧外,样品中存在PZT结构中的Pb、Zr和O,陶瓷的元素定量计算接近样品的配比。且冲击压缩造成PZT中ZrO、PbO键的键长降低,引起冲击合成粉体的Pb4f、Zr3d结合能增大。利用固相合成粉体制备陶瓷的Zr3dXPS比冲击合成粉体制备陶瓷的Zr3dXPS多2个峰,对应于少量游离ZrO2被还原的低价锆离子。By choosing the Pb3O4,ZrO2and TiO2 powders as the raw material,single perovskite Pb（Zr0.95Ti0.05）O3（PZT95/5） powders were synthesized with a cylindrical shock wave loading advice.The phase,elementary valence states,molecular structure and composition of PZT95/5 were characterized by X-ray diffraction（XRD） and X-ray photoelectron spectroscopy（XPS）.The XPS results show that there are the crystal lattices Pb,Zr and O of PZT in the powders and ceramics prepared by shock wave,with the exception of adsorbed oxygen on the sample surface.And the chemical composition of the ceramic samples is near the ideal stoichiometric ratio.In addition,the bond lengths of Zr-O,Pb-O become short under shock compression,which enlarges the binding energy of Pb4 fand Zr3 din the shock-synthesized powders.The Zr3 dspectra of the ceramics prepared with solid-state-synthesized powders have two peaks more than those of the ceramics prepared with shock-synthesized powders do,which attributes to the lower valence zirconium ion from the reduced ZrO2.

关 键 词：固体力学 XPS 冲击波 PZT95/5 结合能 

分 类 号：O347.5[理学—固体力学]