1. 毕业设计（论文）主要目标：
利用两段式烧结技术制备细晶Ba(Zn1/3Nb2/3)O3陶瓷，与固相烧结法相比，预期提高复合钙钛矿结构的有序度。
2. 毕业设计（论文）主要内容：
1.通过两段式烧结法制备Ba(Zn1/3Nb2/3)O3陶瓷，摸索实验条件。
2.研究各工艺参数(第一段烧结温度与保温时间、第二段烧结温度与保温时长)对陶瓷的显微结构、微观结构与介电性能的影响，并与普通烧结法进行对比分析。
3. 主要参考文献
Bosman A, Havinga E. Temperature dependence of dielectric constants of cubic ionic compounds. Phys Rev, 1963, 129(4):1593-1600. Colla E, Reaney IM, Setter N. Effect of structure changes in complex perovskites on the temperature coefficient of the relative permittivity. J Appl Phys, 1993, 74 (5):3414-3425. Reaney IM, Colla E, Setter N. Dielectric and structural characteristics of Ba- and Sr-based complex perovskites as a function of tolerance factor. Jpn J Appl Phys, 1994, 33 (7A):3984-3990. 李曼与罗希等 (2012). 'Ba(Zn1/3Nb2/3)O3微波介质陶瓷的研究进展.' 电子元件与材料 31 (9): 75. 傅茂森 (2009). 复合钙钛矿微波介质陶瓷的结构与性能. 杭州, 浙江大学. 博士学位论文: 164. 王伟 (2005). 纳米添加剂对Ba(Mg1/3Ta2/3)O3微波陶瓷介电性能的影响研究, 天津大学. 博士. 孙萍 (2004). Ba(Zn1/3Nb2/3)O3-CaTiO3系陶瓷结构和介电性能研究, 天津大学. 博士. Reaney IM, Ubic R. Dielectric and structural characteristics of related materials as a function of tolerance factor. Ferroelectrics, 1999, 228 (1-4):23-28. Lufaso MW, Hopkins E, Bell SM, et al. Crystal chemistry and microwave dielectric properties of Ba3MNb2-xSbxO9(M=Mg,Ni,Zn). Chem Mater, 2005, 17 (16):4250-4255. Zhao F, Yue ZX, Pei J, et al. Dielectric abnormities in BaTi0.9(Ni1/2W1/2)0.1O3 giant dielectric constant ceramics. Appl Phys Lett, 2007, 91 (5):052903. Zhao F, Yue ZX, Pei J, et al. Effects of octahedral thichness variance on the temperature coefficient of resonant frequency of the B-site deficient hexagonal perovskites. Appl Phys Lett, 2007, 90(14):142908. Zhao F, Yue ZX, Pei J, et al. Improvement on the temperature coefficient of resonant frequency of hexagonal perovskite through intergrowth structures. Appl Phys Lett, 2007, 89 (20):202901. Wang C, Liu G, Jing X, et al. First-principle calculation and far infrared measurement for infrared-active modes of Ba(Mg1/3Ta2/3)O3. J Am Ceram Soc, 2010, 93(11):3782-3787. Konstantin ZR, Nicola AS, Marjana L. First-principles prediction of oxygen octahedral rotations in perovskite-strucutre EuTiO3. Phys Rev B, 2012, 85: 104109. Dai Y, Zhao G, Liu H. First-principles study of the dielectric properties of Ba(Zn1/3Nb2/3)O3 and Ba(Mg1/3Nb2/3)O3. J Appl Phys, 2009, 105(3):34111.
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