Process control and optimized preparation of porous alumina ceramics by starch consolidation casting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43891532" target="_blank" >RIV/60461373:22310/11:43891532 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2011.05.018" target="_blank" >http://dx.doi.org/10.1016/j.jeurceramsoc.2011.05.018</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2011.05.018" target="_blank" >10.1016/j.jeurceramsoc.2011.05.018</a>
Alternative languages
Result language
angličtina
Original language name
Process control and optimized preparation of porous alumina ceramics by starch consolidation casting
Original language description
This work concerns details of porosity and pore size control in starch consolidation casting of alumina ceramics using corn starch. In particular, the influence of the solids loading (68-78 wt.% alumina in suspensions with nominal starch contents of 20-50 vol.%) on the porosity, bulk density and shrinkage of alumina ceramics is studied. The results indicate a linear decrease of the linear shrinkage and the bulk density (and a corresponding increase in porosity) as the alumina concentration increases, with slopes that are independent of the starch content. The pore size is characterized via microscopic image analysis, the pore throat size via mercury porosimetry. Relations between the volumetric shrinkage, porosity and the volume fractions of starch andwater in the suspensions are discussed, and a new concept, called "affine limit porosity" is proposed to explain the apparently paradoxical finding that the porosity increases with increasing alumina content in the suspension.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JH - Ceramics, fire-proof materials and glass
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the European Ceramic Society
ISSN
0955-2219
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
12
Country of publishing house
BE - BELGIUM
Number of pages
9
Pages from-to
2073-2081
UT code for WoS article
000292667300006
EID of the result in the Scopus database
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