Mechanical properties of starch-zirconia composites - their relation to composition and microstructure
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F11%3A43891547" target="_blank" >RIV/60461373:22310/11:43891547 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Mechanical properties of starch-zirconia composites - their relation to composition and microstructure
Original language description
The mechanical properties of starch-zirconia composites, prepared by starch consolidation casting, and their as-fired counterparts (porous zirconia ceramics) are investigated. The elastic modulus and strength can be controlled by selecting the starch type and fine-tuned by applying starch mixtures. Rice starch enhances both the Young's modulus and the flexural strength. For bodies with 30 vol.% of starch, the bulk densities are 2.17-2.47 g/cm3. Young's moduli can attain values of up to 7 GPa, while flexural strengths attain values up to 12 MPa, with a close correlation to bulk density. After firing porous zirconia ceramics are obtained, in which the bulk density differences are retained, leading to total porosities of 34, 26 and 21 % when using 30 vol.% of potato, corn and rice starch, respectively. Young's moduli are of order 60-120 GPa. Irrespective of the starch type, they exhibit a strong correlation to porosity, which is best described by an exponential relation.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
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
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
6
Pages from-to
27-32
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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