二步水热法制备钛酸铋钠粉体的研究  

Studies on the Two-step Hydrothermal Synthesis of(Bi_(0.5)Na_(0.5))TiO_3 Powders

作　　者：徐明珠[1] 江向平[1] 展红全[1] 陈云婧 傅小龙[1] 于坤[1] 

机构地区：[1]景德镇陶瓷学院材料科学与工程学院,江西景德镇333001

出　　处：《压电与声光》2015年第1期92-95,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(91022027);江西省自然科学基金资助项目(20133ACB20002;20132BAB202002;20122BAB202001;20122BAB203019);江西省高等学校"先进陶瓷材料"科技创新团队基金资助项目

摘　　要：以二氧化钛(TiO2)和氢氧化钠(NaOH)为原料,经水热反应成功合成钛酸钠(Na2Ti3O7)晶体纤维。以合成的钛酸钠和五水硝酸铋(Bi(NO3)3·5H2O)为原料,NaOH为矿化剂,进行二次水热反应制备钛酸铋钠(Na0.5Bi0.5TiO3)粉体。通过X线衍射仪(XRD)和扫描电子显微镜(SEM)对反应制备的粉体进行物相分析,结果表明,通过二步水热反应,可制备出颗粒尺寸均匀的Na0.5Bi0.5TiO3聚集球。Sodium titanate（Na2Ti3O7）crystal fibers were synthesized by hydrothermal method using TiO2 and NaOH as raw materials.Then using Na2Ti3O7 and Bi（NO3）3·5H2O as raw materials,NaOH as mineralizer,Na0.5Bi0.5TiO3 powders was prepared successfully with two-step hydrothermal.The phase composition and particle morphology of the as-prepared powders were characterized by X-ray diffraction（XRD）and scanning electron microscopy（SEM）.Analysis results indicated that the uniformity spherical agglomerates of Na0.5Bi0.5TiO3 were successfully prepared by two-step hydrothermal.

关 键 词：水热法 钛酸钠 钛酸铋钠 压电陶瓷 粉体 

分 类 号：TN384[电子电信—物理电子学] TQ174[化学工程—陶瓷工业]