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Four kinds of porous mullite ceramics, named lotus ceramics because of the similarity of their microstructure with lotus roots, were prepared by an extrusion method using rayon fibers of four different diameters (8.1, 9.6, 16.8 and 37.6μm) as the pore formers. The physicochemical properties of these samples were characterized to test their applicability for the generation of microbubbles. The lotus...
The effect of mechanochemical treatment on the structure and crystallization behaviour of diphasic mullite gel was investigated. The structural differences caused by mechanochemical treatment in diphasic gel were characterized by 27 Al and 29 Si MAS-NMR, XRD, DTA-TG and FT-IR. These investigations show that the crystallization process in this system is affected by the structural...
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