ADDITIVE MANUFACTURING OF POROUS CERAMICS WITH FOAMING AGENT

被引:0
|
作者
Guo, Zipeng [1 ]
An, Lu [2 ]
Lakshmanan, Sushil [1 ]
Armstrong, Jason N. [2 ]
Ren, Shenqiang [3 ]
Zhou, Chi [1 ]
机构
[1] SUNY Buffalo, Dept Ind & Syst Engn, Buffalo, NY 14260 USA
[2] SUNY Buffalo, Dept Mech & Aerosp Engn, Buffalo, NY 14260 USA
[3] SUNY Buffalo, Dept Mech & Aerosp Engn, Dept Chem, Buffalo, NY 14260 USA
来源
PROCEEDINGS OF THE ASME 2021 16TH INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE (MSEC2021), VOL 1 | 2021年
基金
美国国家科学基金会;
关键词
Additive Manufacturing; Ceramic Aerogel; Direct Ink Writing; Macro-porous Structure; Foaming Agent; THERMAL-CONDUCTIVITY; SILICA AEROGELS; PORE-SIZE; GRAPHENE;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The macro porous ceramics has promising durability and thermal insulation performances. A cost-effective and scalable additive manufacturing technique for the fabrication of macroporous ceramics, with a facile approach to control the printed porosity is reported in the paper. Several ceramic inks were prepared, the foaming agent was used to generate gaseous bubbles in the ink, followed by the direct ink writing and the ambient-pressure and room-temperature drying to create the three-dimensional geometries. The experimental studies were performed to optimize the printing quality. A set of studies revealed the optimal printing process parameters for printing the foamed ceramic ink with a high spatial resolution and fine surface quality. Varying the concentration of the foaming agent enabled the controllability of the structural porosity. The maximum porosity can reach 85%, with a crack-free internal porous structure. The tensile tests showed that the printed macro porous ceramics have enhanced durability with the addition of fiber. With a high-fidelity 3D printing process and precise control of the porosity, the printed samples exhibited a low thermal conductivity and high mechanical strength.
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页数:9
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