Preparation of porous alumina ceramics by uniaxial pressing with saccharides and polysaccharides and their characterization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F12%3A43894500" target="_blank" >RIV/60461373:22310/12:43894500 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of porous alumina ceramics by uniaxial pressing with saccharides and polysaccharides and their characterization

Popis výsledku v původním jazyce

Mono-, di- and polysaccharides (glucose, sucrose, inulin and rice starch) were tested with respect to their performance as potentially useful pore formers (and pressing aids) for the uniaxial pressing of dry ceramic powders into disk-shaped compacts (tablets). For this purpose, mixtures of alumina powders with 10, 30 and 50 vol.% of these organic additives were uniaxially pressed at 100 MPa. The organic additives to be used as pore formers were characterized via microscopic image analysis, and the mechanical strength of the as-pressed composite tablets before firing was determined via diametrical compression tests (Brazilian tests). Powder compacts were fired at 1550 °C and their ceramic microstructure after firing (and burnout of the organic pore formers) was characterized by the Archimedes method and by mercury porosimetry. Thermal conductivity measurements were made via the laser-flash method and confirmed a decrease with increasing porosity. A microscopic study was performed to cha

Název v anglickém jazyce

Preparation of porous alumina ceramics by uniaxial pressing with saccharides and polysaccharides and their characterization

Popis výsledku anglicky

Mono-, di- and polysaccharides (glucose, sucrose, inulin and rice starch) were tested with respect to their performance as potentially useful pore formers (and pressing aids) for the uniaxial pressing of dry ceramic powders into disk-shaped compacts (tablets). For this purpose, mixtures of alumina powders with 10, 30 and 50 vol.% of these organic additives were uniaxially pressed at 100 MPa. The organic additives to be used as pore formers were characterized via microscopic image analysis, and the mechanical strength of the as-pressed composite tablets before firing was determined via diametrical compression tests (Brazilian tests). Powder compacts were fired at 1550 °C and their ceramic microstructure after firing (and burnout of the organic pore formers) was characterized by the Archimedes method and by mercury porosimetry. Thermal conductivity measurements were made via the laser-flash method and confirmed a decrease with increasing porosity. A microscopic study was performed to cha

Druh

D - Stať ve sborníku

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F12%2F1170" target="_blank" >GAP108/12/1170: Porézní keramika s řízenou elasticitou a tepelnou vodivostí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 8th International Conference on Polysaccharides-Glycoscience

ISBN

978-80-86238-28-9

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

65-70

Název nakladatele

Česká chemická společnost

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

28. 11. 2012

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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