Počet záznamů: 1
Tailoring of free standing microchannel structures via microtemplating
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SYSNO ASEP 0370044 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Tailoring of free standing microchannel structures via microtemplating Tvůrce(i) Salamon, D. (NL)
Chlup, Zdeněk (UFM-A) RID, ORCID
Lefferts, L. (NL)
Wessling, M. (NL)Celkový počet autorů 4 Zdroj.dok. Materials Research Bulletin. - : Elsevier - ISSN 0025-5408
Roč. 46, č. 4 (2011), s. 505-511Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Ceramics ; Thermogravimetric analysis ; Microstructure Vědní obor RIV JH - Keramika, žáruvzdorné materiály a skla CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000289022100004 DOI 10.1016/j.materresbull.2011.01.005 Anotace The preparation of ceramic microchannel structures from powder based material is a time consuming, expensive or inflexible 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 sacrificial polymeric fiber 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 fibers to set models of microtemplate thermal behavior. We found that the negative influence of thermal expansion and gas production could be eliminated by microtemplates with hollow and porous internal structure. Furthermore we show flexibility of the green stage procedure on an alumina microfluidic loop and a multichannel system with gradient porosity. The microtemplating is demonstrated to be an inexpensive and flexible process. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2012
Počet záznamů: 1