Synthesis and structural evaluation of freeze-cast porous alumina

In this work we fabricated alumina samples by the freeze-casting technique using tert-butanol as the solvent. The prepared materials were examined by scanning electron microscopy and X-ray microtomography. Next, they were coated with sol–gel silica films by dip-coating. Permeability tests were carri...

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Veröffentlicht in:	Materials characterization 2014-10, Vol.96, p.183-195
Hauptverfasser:	Souza, Douglas F., Nunes, Eduardo H.M., Pimenta, Daiana S., Vasconcelos, Daniela C.L., Nascimento, Jailton F., Grava, Wilson, Houmard, Manuel, Vasconcelos, Wander L.
Format:	Artikel
Sprache:	eng
Schlagworte:	ADSORPTION Alumina ALUMINIUM OXIDES Aluminum oxide BUTANOLS CARBON DIOXIDE CASTING CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Cross-disciplinary physics: materials science rheology DIP COATING Dip coatings Exact sciences and technology FLEXURAL STRENGTH Freeze-casting Gas permeability LOADING MATERIALS SCIENCE MECHANICAL TESTS MICROSTRUCTURE Modulus of rupture in bending NITROGEN PERMEABILITY Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics POROUS MATERIALS Reluctance SCANNING ELECTRON MICROSCOPY Separation SILICA Silicon dioxide SINTERING SOL-GEL PROCESS Solidification Surface chemistry X RADIATION X-ray microtomography
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