Polysaccharides as creators of different ceramic microstructures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43892930" target="_blank" >RIV/60461373:22310/11:43892930 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Polysaccharides as creators of different ceramic microstructures
Original language description
Polysaccharides are widely used auxiliaries in ceramic technology today. Typical microstructures are shown for porous alumina made with wheat flour, porous alumina-zirconia composites (ZTA ceramics) made with corn starch and dense zirconia ceramics madewith carrageenan. SEM mircographs indicate a hierarchically porous microstructure with very large (approx. 200 microns) pores for alumina made with wheat flour (in fact a foaming-assisted starch consolidation process) and confirm that the mercury porosimetry results must be interpreted in terms of pore throat size distributions (also for ZTA ceramics made with corn starch). Total porosities of 60 % can readily be obtained when using wheat flour (50 % with corn starch). Zirconia ceramics made by carrageenan gelcasting can be sintered to almost full density (total porosities { 2 %) while retaining a reasonably fine grain size (0.5-2 microns). However, dimensional control may be a problem due to the high shrinkage for carrageenan gelcastin
Czech name
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Czech description
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Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 7th International Conference on Polysaccharides - Glycoscience
ISBN
978-80-86238-90-6
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
106-110
Publisher name
Česká společnost chemická
Place of publication
Praha
Event location
Praha
Event date
Nov 2, 2011
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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