溶胶-凝胶K_(0.5)Bi_(0.5)TiO_3陶瓷的高温XRD研究  

X-Ray Diffraction Study in High Temperature of K_(0.5)Bi_(0.5)TiO_3 Ceramics Prepared by Sol-Gel Method

作　　者：李正法[1] 王春雷[2] 钟维烈[2] 赵明磊[2] 王矜奉[2] 陈洪存[2] 

机构地区：[1]中国计量学院应用物理系,杭州310018 [2]山东大学物理与微电子学院晶体材料国家重点实验室,济南250100

出　　处：《压电与声光》2004年第1期69-71,共3页Piezoelectrics & Acoustooptics

基　　金：国家重点基础研究发展规划项目(G1998061408)

摘　　要：采用溶胶-凝胶法成功制备出K0.5Bi0.5TiO3(KBT)纳米微粉,并利用此微粉烧结出成瓷良好的KBT陶瓷。用XRD法测定了KBT陶瓷粉末室温和高温(600°C)时的点阵常数,确定KBT的高温相为立方结构(点群为m3m)并指标化其衍射线,给出了KBT陶瓷粉末的多晶XRD数据。Well-sintered Potassium bismuth titanate K_(0.5)Bi_(0.5)TiO_3(KBT)ceramics is fabricated successfully with KBT nano-powders prepared by Sol-Gel process.The lattice parameters of Potassium bismuth titanate ceramic powders are determined by method of X-ray diffraction in ordinary and high temperature (600 °C). Cubic lattice type (point group m3m) of Potassium bismuth titanate in high temperature is determined, its pattern is indexed and its polycrystalline X-ray diffraction data are listed.

关 键 词：溶胶-凝胶法 KBT纳米微粉 无铅陶瓷 高温相结构 

分 类 号：O487[理学—固体物理]