Starch as a pore-forming and body-forming agent in ceramic technology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F09%3A00021504" target="_blank" >RIV/60461373:22310/09:00021504 - 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

Starch as a pore-forming and body-forming agent in ceramic technology

Original language description

Wheat and corn starch can be used fotr the preparation of porous alumina ceramics via the SCC (starch consolidation casting) process, resulting in porosities ranging from>20% to approx. 50% (using nominal starch contents of 10-50%, v/v) with open porosity dominating (Closed porosity <6.5%). The character of porosity and the shape of the pores corresponds to the starch granules used, but the pore size is determined by a complex interplay between starch swelling (during the body-forming step) and pore shrinkage (during sintering of the ceramic). Typically, for low starch contents (e.g. nominal starch contents of around 10%, v/v) starch swelling is a singnificant effect, and the pores after sintering are larger than the size of the starch granules. For higher starch contents swelling is constrained (by limited space and/ or water availability), and the matrix shrinkage during sintering overcompensates the swellint effect, so that the final pores in the ceramic can be significantly smaller

Czech name

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Czech description

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Type

J_x - 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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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Starch/Stärke

ISSN

0038-9056

e-ISSN

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Volume of the periodical

61

Issue of the periodical within the volume

9

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

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UT code for WoS article

000270439500002

EID of the result in the Scopus database

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