水基凝胶发泡法制备多孔陶瓷任务书
2020-04-17 20:28:15
1. 毕业设计(论文)的内容和要求
1、内容: 多孔陶瓷质量轻、耐高温、耐腐蚀,被广泛用于隔热、过滤、载体等众多领域。
高温隔热多孔陶瓷材料通常采用料浆发泡、造孔剂烧失、颗粒堆积等方式制备,隔热效果取决于气孔率的高低和闭气孔的含量;同时,很多研究结果表明,包括气孔大小、形状、分布状态等孔隙结构会对多孔陶瓷的机械性能、热性能等产生显著影响。
本课题中,采用工艺简便、环境友好的凝胶发泡成型工艺,通过研究各添加助剂含量对泡沫稳定性、陶瓷体孔结构和力学、热学性能的影响,掌握最佳工艺参数。
2. 参考文献
[1] 文青. 发泡注凝法制备多孔氧化铝陶瓷保温材料 [D]; 武汉理工大学, 2012. [2] FAMEAU A L, SALONEN A. Effect of particles and aggregated structures on the foam stability and aging [J]. Comptes Rendus Physique, 2014, 15(8-9): 748-60. [3] HUO W, ZHANG X, CHEN Y, et al. Mechanical strength of highly porous ceramic foams with thin and lamellate cell wall from particle-stabilized foams [J]. Ceramics International, 2018, 44(5): 5780-4. [4] GONZENBACH U T, STUDART A R, ELENA T, et al. Stabilization of foams with inorganic colloidal particles [J]. Langmuir the Acs Journal of Surfaces Colloids, 2006, 22(26): 10983-8. [5] GONZENBACH U T, STUDART A R, ELENA T, et al. Ultrastable particle-stabilized foams [J]. Angewandte Chemie International Edition, 2010, 45(21): 3526-30. [6] HRISTOVA M, LESOV I, TCHOLAKOVA S, et al. From Pickering Foams to Porous Carbonate Materials: Crack-free Structuring in Drying Ceramics [J]. Colloids Surfaces A Physicochemical Engineering Aspects, [7] WANG G, WANG K, WANG Y. Synthesis of amphiphilic fluorinated Janus particles with applications in stabilizing surfactant-free foams [J]. Particuology, 2018, [8] HUO W, CHEN Y, ZHANG Z, et al. Highly Porous Barium Strontium Titanate (BST) Ceramic Foams with Low Dielectric Constant from Particle-Stabilized Foams [J]. Journal of the American Ceramic Society, 2017, 101(4): [9] ZHAO J, SHIMAI S, ZHOU G, et al. Ceramic foams shaped by oppositely charged dispersant and surfactant [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018, 537(210-6. [10] PRABHAKARAN K, GOKHALE N M, SHARMA S C, et al. A Novel Process for Low‐Density Alumina Foams [J]. Journal of the American Ceramic Society, 2010, 88(9): 2600-3. [11] JUETTNER T, MOERTEL H, SVINKA V, et al. Structure of kaoline#8211;alumina based foam ceramics for high temperature applications [J]. Journal of the European Ceramic Society, 2007, 27(2): 1435-41. [12] GARC A-TEN J, SABURIT A, ORTS M J, et al. Glass foams from oxidation/reduction reactions using SiC, Si3N4 and AlN powders [J]. Glass Technology European Journal of Glass Science Technology, 2011, 52(4): 103-10(8). [13] XI X, XU L, SHUI A, et al. Effect of silicon carbide particle size and CaO content on foaming properties during firing and microstructure of porcelain ceramics [J]. Ceramics International, 2014, 40(8): 12931-8. [14] #268;ERN M, CHLUP Z, STRACHOTA A, et al. Si O C ceramic foams derived from polymethylphenylsiloxane precursor with starch as foaming agent [J]. Journal of the European Ceramic Society, 2015, 35(13): 3427-36. [15] SHE J H, OHJI T. Fabrication and characterization of highly porous mullite ceramics [J]. Materials Chemistry Physics, 2003, 80(3): 610-4. [16] YANG J F, ZHANG G J, OHJI T. Fabrication of Low‐Shrinkage, Porous Silicon Nitride Ceramics by Addition of a Small Amount of Carbon [J]. Journal of the American Ceramic Society, 2010, 84(7): 1639-41. [17] CHEN A N, LI M, XU J, et al. High-porosity mullite ceramic foams prepared by selective laser sintering using fly ash hollow spheres as raw materials [J]. Journal of the European Ceramic Society, 2018,
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 2月25日 ~3月3日 确定课题,布置任务,阅读文献资料,并进一步检索文献。
3月4日 ~3月17日 翻译英文文献,完成开题报告;制订实验计划,了解实验仪器设备及实验方法。
3月18日 ~ 3月24日 修改开题报告及英文文献翻译,进行开题,根据意见完善实验计划。
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