煅烧条件对BaTiO_3纳米粉体结构的影响  

Structure of BaTiO_3 nanometer powders affected by calcining conditions

作　　者：李晓池[1] 王涛[1] 聂丽华[1] 

机构地区：[1]西安科技大学材料科学与工程系,陕西西安710054

出　　处：《西安科技大学学报》2006年第2期215-218,共4页Journal of Xi’an University of Science and Technology

摘　　要：将溶胶-凝胶法制备的钛酸钡纳米粉体在不同的条件下煅烧,然后对粉体进行激光粒度分布、红外光谱(FT-IR)、X射线衍射(X-ray)、扫描电镜(SEM)等表征。实验结果表明:溶胶-凝胶法制备的样品在800℃左右的温度下煅烧2 h,并在空气中冷却,可得到粒径分布窄、颗粒均匀、纯度高的钛酸钡纳米粉体。The BaTiO3 nanometer powders were prepared by sol-gel method. The nanometer powders were obtained by different calcining conditions . BaTiO3 powders were characterized by particle size distribution, FT-IR, X-ray powder diffraction （XRD）, and scanning electron microscope （SEM）. The result shows that calcining at 800 ℃ for 2 h and cooling up in the air is the best, BaTiO3 powder obtained at this condition have narrow particle size distribution, small particle size and high purity crystallization.

关 键 词：煅烧条件 钛酸钡 粒径 结晶 

分 类 号：TB321[一般工业技术—材料科学与工程]