TY - GEN
T1 - Additive manufacturing of porous ceramics with foaming agent
AU - Guo, Zipeng
AU - An, Lu
AU - Lakshmanan, Sushil
AU - Armstrong, Jason N.
AU - Ren, Shenqiang
AU - Zhou, Chi
N1 - Publisher Copyright:
Copyright © 2021 by ASME
PY - 2021
Y1 - 2021
N2 - The macro-porous ceramics has promising durability and thermal insulation performances. A cost-effective and scalable additive manufacturing technique for the fabrication of macro-porous 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.
AB - The macro-porous ceramics has promising durability and thermal insulation performances. A cost-effective and scalable additive manufacturing technique for the fabrication of macro-porous 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.
KW - Additive Manufacturing
KW - Ceramic Aerogel
KW - Direct Ink Writing
KW - Foaming Agent
KW - Macro-porous Structure
UR - https://www.scopus.com/pages/publications/85112432273
U2 - 10.1115/MSEC2021-63493
DO - 10.1115/MSEC2021-63493
M3 - Conference contribution
AN - SCOPUS:85112432273
T3 - Proceedings of the ASME 2021 16th International Manufacturing Science and Engineering Conference, MSEC 2021
BT - Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering; Manufacturing Equipment and Automation
PB - American Society of Mechanical Engineers
T2 - ASME 2021 16th International Manufacturing Science and Engineering Conference, MSEC 2021
Y2 - 21 June 2021 through 25 June 2021
ER -