Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Controlling the Porosity of Particle Stabilized Al2O3 Based Ceramics

  • Pokhrel, Ashish (Institute of Processing and Application of Inorganic Materials (PAIM) Department of Advanced Materials Science and Engineering, Hanseo University) ;
  • Park, Jung-Gyu (Institute of Processing and Application of Inorganic Materials (PAIM) Department of Advanced Materials Science and Engineering, Hanseo University) ;
  • Jho, Gae-Hyong (Institute of Processing and Application of Inorganic Materials (PAIM) Department of Advanced Materials Science and Engineering, Hanseo University) ;
  • Kim, Jin-Young (Institute of Processing and Application of Inorganic Materials (PAIM) Department of Advanced Materials Science and Engineering, Hanseo University) ;
  • Kim, Ik-Jin (Institute of Processing and Application of Inorganic Materials (PAIM) Department of Advanced Materials Science and Engineering, Hanseo University)
  • Received : 2011.09.01
  • Accepted : 2011.09.08
  • Published : 2011.11.30
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Abstract

The microstructure of particle stabilized wet foams can be tailored by using parameters including the amphiphile concentration, contact angle, and surface tension. The influence of these parameters on the porosity is satisfactorily described in terms of a combined influence of the contact angle and surface tension of the initial suspensions that are directly affected by the amphiphile concentration. The resulting macroporous structures exhibited a total porosity of 82%. The foam cells were predominantly closed due to the air bubbles of the original wet foams being completely covered.

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References

  1. U. T. Gonzenabach, A. R Studart, E. Tervoort, and L. J. Gauckler, "Stabilization of Foams with Inorganic Colloidal Particles," Langmuir., 10983-88 (2006).
  2. U. T. Gonzenbach, A. R. Studart, E. Tervoort, and L. J. Gauckler, "Tailoring the Microstructure of Particle-Stabilized Wet Foams," Langmuir., 23 [3] 1025-32 (2007). https://doi.org/10.1021/la0624844
  3. N. D. Denkov, I. B. Ivanov, P. A. Kralchevsky, and D.T. Wasan, "A Possible Mechanism of Stabilisation of Emulsions by Solid Particles," J. Collid. Inter. Sci., 150 589-93 (1992). https://doi.org/10.1016/0021-9797(92)90228-E
  4. B. P. Binks, "Particles as Surfactants-similarities and Differences," Curr. Opin. Colloid Interface Sci., 7 21-41 (2002). https://doi.org/10.1016/S1359-0294(02)00008-0
  5. A. R. Studart, U. T. Gonzenbach, I. Akartuna, E. Tervoort, and L. J. Gauckler, "Materials from foams and Emulsions Stabilized by Colloidal Particles," J. Mater. Chem., 3283-89 (2007).
  6. T. S. Horozov, "Foams and foam films stabilized by solid particles," Curr. Opin. Colloid Interface Sci., 13 134-40 (2008). https://doi.org/10.1016/j.cocis.2007.11.009
  7. T. N. Hunter, R. J. Pugh, G. V. Fanks, and G. J. Jameson, "A Role of Particles in Stabilizing Foams and Emulsions," Adv. Collid and Inter. Sci., 137 57-81 (2008). https://doi.org/10.1016/j.cis.2007.07.007
  8. N. D. Denkov, I. B. Ivanov, P. A. Kralchevsky, and D. T. Wasan, "A Possible Mechanism of Stabilization of Emulsions by Solid Particles," J. Collid. Inter. Sci., 150 [2] 589-93 (1992). https://doi.org/10.1016/0021-9797(92)90228-E
  9. B. Neirinck, J. Fransaer, O. V. der Biest, and J. Vleugels, "A Novel Route to Produce Porous Ceramics," J. Eur. Ceram. Soc., 29 833-36 (2009). https://doi.org/10.1016/j.jeurceramsoc.2008.07.009
  10. U. T. Gonzenabach, A. R. Studart, E. Tervoort, and L. J. Gauckler, "Ultrastable Particle-Stabilized Foams," Angew. Chem. Int. Ed., 45 3526-30 (2006). https://doi.org/10.1002/anie.200503676
  11. D. K. Lim and E. T. Kang, "Porous Materials from Waste Bottles by Hydrothermal Treatment (in Korean)," J. Kor. Ceram. Soc., 46 [3] 275-281 (2009). https://doi.org/10.4191/KCERS.2009.46.3.275

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