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Preparation of Cordierite Materials with Tailored Porosity by Gelcasting with Polysaccharides
Author(s) -
Santacruz Isabel,
Moreno Rodrigo,
Rodrigues Neto Joao B.
Publication year - 2008
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2008.02189.x
Subject(s) - cordierite , materials science , porosity , pulmonary surfactant , composite material , rheology , characterization (materials science) , chemical engineering , agar , mineralogy , nanotechnology , ceramic , chemistry , biology , bacteria , engineering , genetics
This paper deals with the rheological characterization of agar and foaming surfactant‐containing suspensions for obtaining stoichiometric cordierite samples with tailored open macroporosity and their characterization through density and microstructural studies. The influence of the processing parameters solid loading (20, 30, and 45 vol%), slip temperature (65°C, 45°C, and 40°C), and agar/surfactant ratio (10.2, 8.0, and 5.6) on the obtained bodies is discussed. Open Porosity (up to 76 vol%) and average cell size were found to be strongly dependent on solids loading.