1. 毕业设计（论文）的内容和要求

内容： 钛酸钡是一种强介电化合物材料，具有高介电常数和低介电损耗，是电子陶瓷中使用最广泛的材料之一，被誉为”电子陶瓷工业的支柱”。

钛酸钡是一致性熔融化合物，其熔点为1618℃。

当温度下降到5℃以下，在5~-90℃温区内，钛酸钡晶体转变成正交晶系mm2点群，此时晶体仍具有铁电性，其自发极化强度沿原立方晶胞的面对角线方向。

2. 参考文献

[1]Cao J, Ji Y, Tian C, Yi Z. Synthesis and enhancement of visible light activities of nitrogen-doped BaTiO3[J]. Journal of Alloys and Compounds. 2014,615:243-8. [2]Li B-r, Shang W, Hu Z-l, Zhang N-q. Template-free fabrication of pure single-crystalline BaTiO3 nano-wires by molten salt synthesis technique[J]. Ceramics International. 2014,40(1):73-80. [3]Li H, Sang Y, Chang S, Huang X, Zhang Y, Yang R, et al. Enhanced ferroelectric-nanocrystal-based hybrid photocatalysis by ultrasonic-wave-generated piezophototronic effect[J]. Nano Lett. 2015,15(4):2372-9. [4]Li H, sun Y, zhang W, Pan W. Preparation of heterostructured Ag/BaTiO3 nanofibers via electrospinning[J]. Journal of Alloys and Compounds. 2010,508(2):536-9. [5]Li H, Xue L, Yan Y. Preparation and magnetic properties of electrospun Co/BaTiO3 heterostructured nanofibers[J]. Journal of Alloys and Compounds. 2014,611:38-42. [6]Zhuang Y, Li F, Yang G, Xu Z, Li J, Fu B, et al. Fabrication and Piezoelectric Property of BaTiO3Nanofibers[J]. Journal of the American Ceramic Society. 2014,97(9):2725-30. [7]Wei Y, Song Y, Deng X, Han B, Zhang X, Shen Y, et al. Dielectric and Ferroelectric Properties of BaTiO3 Nanofibers Prepared via#160;Electrospinning[J]. Journal of Materials Science Technology. 2014,30(8):743-7. [8]Wang W, Cao L, Liu W, Su G, Zhang W. Low-temperature synthesis of BaTiO3 powders by the sol#8211;gel-hydrothermal method[J]. Ceramics International. 2013,39(6):7127-34. [9]Song Y, Shen Y, Liu H, Lin Y, Li M, Nan C-W. Enhanced dielectric and ferroelectric properties induced by dopamine-modified BaTiO3 nanofibers in flexible poly(vinylidene fluoride-trifluoroethylene) nanocomposites[J]. Journal of Materials Chemistry. 2012,22(16):8063. [10]Sengodan R, Chandar shekar B, Sathish S. Structural and DC conduction studies on vacuum evaporated BaTiO3 thin films prepared from BaTiO3 nano particles synthesised by wet chemical method[J]. Optik - International Journal for Light and Electron Optics. 2014,125(17):4819-24. [11]Park KI, Bae SB, Yang SH, Lee HI, Lee K, Lee SJ. Lead-free BaTiO3 nanowires-based flexible nanocomposite generator[J]. Nanoscale. 2014,6(15):8962-8. [12]Natsume M, Kim J-H, Yonezawa S, Takashima M. Preparation and characterization of nano-sized BaTiO3 particles using aqueous peroxotitanium acid solution: Effects of pH adjustment[J]. Materials Chemistry and Physics. 2014,148(1-2):169-74. [13]Min B, Moon SM, Cho NH. Structural and dielectric features of Nb-doped nano-sized BaTiO3 powders prepared by hydro-thermal synthesis methods[J]. Current Applied Physics. 2011,11(3):S193-S6. [14]Mimura K-i, Moriya M, Sakamoto W, Yogo T. Synthesis of BaTiO3 nanoparticle/poly(2-hydroxyethyl methacrylate) hybrid nanofibers via electrospinning[J]. Composites Science and Technology. 2010,70(3):492-7. [15]Liu S, Xue S, Zhang W, Zhai J. Enhanced dielectric and energy storage density induced by surface-modified BaTiO3 nanofibers in poly(vinylidene fluoride) nanocomposites[J]. Ceramics International. 2014,40(10):15633-40.

3. 毕业设计（论文）进程安排

起讫日期 设计（论文）各阶段工作内容 备 注 2016.02.29～2016.03.28 查阅文献，做好实验计划 2周 2016.03.29～2016.04.11 样品制备 1 周 2016.04.12～2016.06.19 产物表征、测试 2周 2016.04.20～2016.04.27 工艺完善、实验数据的整理 1周 2016.04.28～2016.05.04 中期总结，论文初稿 1周 2016.05.05～2014.05.28 补充试验数据，完善论文 2 周 2016.05.29～2016.06.5 PPT制作，准备答辨 1 周