Tailoring of free standing microchannel structures via microtemplating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00370044" target="_blank" >RIV/68081723:_____/11:00370044 - 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

Tailoring of free standing microchannel structures via microtemplating

Popis výsledku v původním jazyce

The preparation of ceramic microchannel structures from powder based material is a time consuming, expensive or in?exible process. This work demonstrates microtemplating ? a new reliable and economical fabrication method for preparing ceramic alumina self-supporting microchannels with diameters from 10 to 1000 mm. The basis for this method is the controlled dip-coating of a sacri?cial polymeric ?ber template with suspensions containing sinterable particles. Subsequent sintering results in self-supporting ceramic microchannels. Thermal behavior of a microtemplate is critical for achieving self-supporting microchannels. We used polyamide, keratin, para-aramide, polypropylene, and polyimide ?bers to set models of microtemplate thermal behavior. We found that the negative in?uence of thermal expansion and gas production could be eliminated by microtemplates with hollow and porous internal structure. Furthermore we show ?exibility of the green stage procedure on an alumina micro?uidic loop

Název v anglickém jazyce

Tailoring of free standing microchannel structures via microtemplating

Popis výsledku anglicky

The preparation of ceramic microchannel structures from powder based material is a time consuming, expensive or in?exible process. This work demonstrates microtemplating ? a new reliable and economical fabrication method for preparing ceramic alumina self-supporting microchannels with diameters from 10 to 1000 mm. The basis for this method is the controlled dip-coating of a sacri?cial polymeric ?ber template with suspensions containing sinterable particles. Subsequent sintering results in self-supporting ceramic microchannels. Thermal behavior of a microtemplate is critical for achieving self-supporting microchannels. We used polyamide, keratin, para-aramide, polypropylene, and polyimide ?bers to set models of microtemplate thermal behavior. We found that the negative in?uence of thermal expansion and gas production could be eliminated by microtemplates with hollow and porous internal structure. Furthermore we show ?exibility of the green stage procedure on an alumina micro?uidic loop

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Materials Research Bulletin

ISSN

0025-5408

e-ISSN

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Svazek periodika

46

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

505-511

Kód UT WoS článku

000289022100004

EID výsledku v databázi Scopus

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