Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/2872
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dc.contributor.authorSabat, Satya Narayana-
dc.contributor.authorPaul, Arindam-
dc.date.accessioned2018-01-10T05:26:14Z-
dc.date.available2018-01-10T05:26:14Z-
dc.date.issued2017-12-
dc.identifier.citation81st Annual session of Indian Ceramic Society and International conference on “Expanding Horizons of Technological Applications of Ceramics and Glasses", Pune, India, 14 - 16 December, 2017.en_US
dc.identifier.urihttp://hdl.handle.net/2080/2872-
dc.descriptionCopyright of this document belongs to proceedings publisher.en_US
dc.description.abstractFreeze casting or ice-templating is an emerging technique used to fabricate highly porous ceramic scaffold having lamellar pore morphology. The growing ice crystals triggers the self- assembly of ceramic particles hence produces a large, anisotropic porous material. Water based ceramic suspension containing α-Al2O3 platelets was used to form a large porous scaffold by unidirectional freeze casting having pores that are negative replica of ice crystals. Well dispersed hexagonal shaped α-Al2O3 platelets having diameter and thickness varies in between 8 – 9 μm and 1 – 2 μm respectively, were synthesized by flux method using boehmite as a precursor for alumina. Aqueous ceramic slurry was prepared with these platelets and allowed for controlled freezing in a custom made freeze casting device followed by sublimation in a conventional freeze dryer results in formation of layered ceramic porous scaffold. Pressing the green body in a direction perpendicular to the ice front growth direction with subsequent sintering at 1500o C for 4h results a partially dense body. The microstructural study of this partially dense material shows large scale parallel alignment of α-Al2O3 platelets. This newly developed high porosity mechanically strong material has potential application in energy related areas and several structural applications.en_US
dc.subjectIce-templatingen_US
dc.subjectLyophilisationen_US
dc.subjectPorous lamellar structureen_US
dc.titleFabrication of Bulk Lamellar Porous Ceramic Using Unidirectional Freeze Casting Methoden_US
dc.typePresentationen_US
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