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J. Korean Ceram. Soc. > Volume 48(5); 2011 > Article
Journal of the Korean Ceramic Society 2011;48(5): 463.
doi: https://doi.org/10.4191/kcers.2011.48.5.463
Stabilization of Wet Foams for Porous Ceramics Using Amphiphilic Particles
Ashish Pokhrel, Jung-Gyu Park, Jeong-Sic Nam, Deock-Soo Cheong1, Ik-Jin Kim
Institute of Processing and Application of Inorganic Materials, (PAIM) Department of Advanced Materials Science and Engineering, Hanseo University
1Fine Micell Industries Co. Ltd.
ABSTRACT
Wet foams formed through direct foaming were stabilized using various concentrations of amiphiphilic particles that could control pore size and porosity. These porous materials showed moderate strength upon compression with high porosity. Bubble size and wet foam stability were tailored by amphiphile concentration, particle concentration, contact angle, and pH of the suspension to obtain crack-free porous solid after sintering. Closed and open pores were obtained with sizes of 30~300 ${mu}m$ and porosities of over 80%.
Key words: Contact angle, Amphiphile concentration, Wet foams, Bubble size
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