Porous hydroxyapatite ceramics prepared by dry powder pressing with sucrose and by suspension foaming techniques using wheat flour and other pore formers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43898212" target="_blank" >RIV/60461373:22310/14:43898212 - 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
Porous hydroxyapatite ceramics prepared by dry powder pressing with sucrose and by suspension foaming techniques using wheat flour and other pore formers
Original language description
Porous hydroxyapatite (HA) ceramics with controlled microstructure have been prepared by uniaxial pressing of dry HA powders with a precisely size fraction of sucrose (400-600 ?m) as a pore former and pressing additive. Total porosities obtained after firing (800-1000 °C) powder compacts with 10-50 vol.% of sucrose are in the range 52-72 %, which indicates that a significant part of the porosity is not a result from sucrose burnout, but residual interstitial porosity between the primary nanocrystallineHA grains (crystallites) forming the matrix in which the large pores (mean chord length range determined via stereology-based image analysis approx. 400-800 ?m) are embedded. This has been confirmed by SEM and by mercury porosimetry. As expected, the strength of these materials is not very high (diametral compression strength { 1.2 MPa) and decreases significantly with increasing porosity. However, Young's moduli are in the range 1-11 GPa, i.e. very close to that of bone (2-20 GPa), so t
Czech name
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Czech description
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Project
<a href="/en/project/GAP108%2F12%2F1170" target="_blank" >GAP108/12/1170: Porous Ceramics with Tailored Elasticity and Thermal Conductivity</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 10th International Conference on Polysaccharides - Glycoscience
ISBN
978-80-86238-70-8
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
182-187
Publisher name
Česká chemická společnost
Place of publication
Praha
Event location
Prague, Czech Republic
Event date
Oct 22, 2014
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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