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毕业论文网 > 任务书 > 化学化工与生命科学类 > 化学工程与工艺 > 正文

锶钴铁钙钛矿的冷烧结工艺探索任务书

 2020-04-22 19:43:45  

1. 毕业设计(论文)的内容和要求

本课题利用冷烧结工艺的设计策略,通过液相诱导溶解-沉淀过程促进陶瓷颗粒致密化,通过改变冷烧结温度并进行一系列表征和测试,探究冷烧结工艺以期降低烧结温度,从而在中低温烧结温度下获得较高致密度的片式膜。

由于srco0.8fe0.2o3-δ钙钛矿具备良好的透氧性能,所以选择这一材料进行冷烧结工艺的探索。

具体要求: 1、理解钙钛矿材料的基本概念、冷烧结工艺原理、实验流程以及影响膜性能的主要因素; 2、熟悉理解钙钛矿材料的基本性质及其冷烧结制备成片式膜的实验流程; 3、熟悉有关片式膜制备的常规知识,并强化相关的物理和化学知识; 4、了解并掌握sem、xrd、edxs等表征手段的基本原理和操作方法,对所制备的膜材料进行相关表征; 5、合理安排实验进程,工作时间不迟到早退。

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2. 参考文献

[1] C.A. Randall, J. Guo, H. Guo, A. Baker, and M.T. Lanagan, Cold Sintering Ceramics and Composites; US Provisional Patent Application 62/234 (2015) 389. [2] H. Guo, A. Baker, J. Guo, C.A. Randall, Cold sintering process: a novel technique fo r low-temperature ceramic processing of ferroelectrics, J. Am. Ceram. Soc.99 (2016) 3489#8211;3507. [3] J. Guo, H. Guo, A. Baker, M.T. Lanagan, E.R. Kupp, G.L. Messing, C.A. Randall, Cold sintering: a paradigm shift for processing and integration of ceramics, Angew. Chem. Int. Ed. 55 (2016) 11457#8211;11461. [4] H. Guo, A. Baker, J. Guo, C.A. Randall, Protocol for ultralow-temperature ceramic sintering: an integration of nanotechnology and cold sintering process, ACS Nano 10 (2016) 10606#8211;10614. [5] H. Guo, J. Guo, A. Baker, C.A. Randall, Hydrothermal-assisted cold sintering process: a new guidance for low temperature ceramic sintering, ACS Appl.Mater. Interfaces 8 (2016) 20909#8211;20915. [6] S. Funahashi, J. Guo, H. Guo, K. Wang, K. Shiratsuyu, C.A. Randall, Demonstration of the cold sintering process study for the densification of ZnO ceramics, J. Am. Ceram. Soc. (2016), http://dx.doi.org/10.1111/jace.14617. [7] J. Guo, A. Baker, H. Guo, M. Lanagan, C.A. Randall, Cold sintering process: a new era for ceramic packaging and microwave device development, J. Am. Ceram. Soc. (2016), http://dx.doi.org/10.1111/jace.14603. [8] H. Guo, J. Guo, A. Baker, C.A. Randall, Cold sintering process for ZrO2-based ceramics: significantly enhanced densification evolution in yttria-doped ZrO2, J. Am. Ceram. Soc. (2016), http://dx.doi.org/10.1111/jace.14593. [9] A. Baker, H. Guo, J. Guo, C.A. Randall, Utilizing the cold sintering process for flexible#8211;printable electroceramic device fabrication, J. Am. Ceram. Soc. 99 (2016) 3202#8211;3204. [10] J. Guo, S.S. Berbano, H. Guo, A.L. Baker, M.T. Lanagan, C.A. Randall, Cold sintering process of composites: bridging the processing temperature gap of ceramic and polymer materials, Adv. Funct. Mater. 26 (2016) 7115#8211;7121. [11] N. Yamasaki, K. Yanagisawa, M. Nishioka, S. Kanahara, A hydrothermal hot-pressing method: apparatus and application, J. Mater. Sci. Lett. 5 (1986) 355#8211;356. [12] K. Yanagisawa, M. Sasaki, M. Nishioka, K. Ioku, N. Yamasaki, Preparation of sintered compacts of anatase by hydrothermal hot-pressing, J. Mater. Sci. Lett..13 (1994) 765#8211;766. [13] S. Katsuyama, A. Kishida, M. Ito, Synthesis of NaxCo2O4 by the hydrothermal hot-pressing and its thermoelectric properties, J. Alloys Compd. 414 (2006) 215#8211;220. [14] D.M. Roy, G.R. Gouda, Porosity-strength relation in cementitious materials with very high strengths, J. Am. Ceram. Soc. 56 (1973) 549#8211;550. [15] S. Somiya, Hydrothermal preparation and sintering of fine ceramic powders, Mater. Res. Soc. Symp. Proc. 24 (1984) 255#8211;271.

3. 毕业设计(论文)进程安排

18.01.11~18.02.23:查阅各种课题背景资料,完成英文文献的阅读和翻译,同时开始准备实验计划、拟定实验方案; 18.02.23~18.03.20: 完成不同组成配比的SCF冷烧结的制备,降低烧结温度,并进行初步表征; 18.03.20~18.05.20:完成本课题实验工作,完成相关性能测试,优化SCF片式膜的透氧性能和稳定性; 18.05.20~18.06.10:完成本科毕业论文的撰写以及辅助材料,完成PPT,同时准备毕业答辩。

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