Fe掺杂SrSnO3陶瓷的制备及其特性的研究-《集美大学学报（自然科学版）》

文章信息/Info

Author(s):: LI Hong¹; 2; (1.School of Physics and Electronic InformationHuaibei Normal University Huaibei 235000 China2.Department of Physics,Shanghai Jiao Tong University,Shanghai 200240,China)

Keywords:: solid-state reaction method; powder; target; XRD; SEM; crystal lattice parameter; doping

摘要:: 以SrCO3、SnO2和Fe3O4为原料，采用传统固相反应法制备了Fe掺杂SrSnO3陶瓷，并借助XRD和SEM，研究了SrFexSn1-xO3的相结构、形貌及Fe掺杂量对其电性能的影响.XRD图谱表明：未经烧结的样品是混合物，随着烧结次数的增加，样品的收缩增大，成品纯度变高，XRD杂峰减少.Fe掺杂SrSnO3陶瓷中随着Fe含量从0增加到1，烧结温度逐渐降低，从1480 ℃下降到1200 ℃，其晶格常数从0 .806 9 nm下降到0 .773 6 nm，晶体结构没有发生明显改变.SEM图片显示，靶材晶粒随着掺杂量的增加逐渐增大，由2 .09 μm增加到4 .93 μm

Abstract:: Using SrCO₃，SnO₂ and Fe ₃O₄ as starting materials ，SrSnO₃ ceramics were prepared by conventional solid -state reaction method.The effects of phase structure ，morphology and Fe -doping on the electric properties of SrFexSn1-xO3 ceramics were investigated by X -ray Diffraction (XRD) and Scanning Electron Microscopy (SEM).XRD patterns indicated that the sample without sintering was a mixture.With increasing the number of sintering ，the contraction of the sample increased，the purity of the finished product became higher，XRD＇s impure peaks decreased.With the iron increasing from 0 to 1 in SrSnO₃ ，the sintering temperature decreased from 1480 ℃ to 1200 ℃ gradually ，the crystal lattice parameter from 0 .806 9 nm down to 0 .773 6 nm，the crystal structure of SrSnO3 did not change clearly.SEM images showed the crystal size of targets increased from about 2 .09 μm to 4 .93 μm with the iron-doping increaseing