Počet záznamů: 1
Evolution of fine microstructure during firing of extruded clays: a small angle neutron scattering study
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SYSNO ASEP 0493146 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Evolution of fine microstructure during firing of extruded clays: a small angle neutron scattering study Tvůrce(i) Viani, Alberto (UTAM-F) RID, ORCID, SAI
Ševčík, Radek (UTAM-F) RID, SAI, ORCID
Appavou, M.-S. (DE)
Radulescu, A. (DE)Celkový počet autorů 4 Zdroj.dok. Applied Clay Science. - : Elsevier - ISSN 0169-1317
Roč. 166, December (2018), s. 1-8Poč.str. 8 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova fired-clays ; small angle neutron scattering ; extrusion ; anisotropy ; porosity Vědní obor RIV JH - Keramika, žáruvzdorné materiály a skla Obor OECD Ceramics CEP LO1219 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy UT WOS 000449135300001 EID SCOPUS 85053032555 DOI 10.1016/j.clay.2018.09.002 Anotace The microstructure of extruded fired-clay bodies in the interval 800–1100 °C has been investigated with small angle neutron scattering. The evolution of the retrieved pore size distribution is compatible with the coarsening of the pore network with increasing temperature. The analysis of the scattering curves in combination with results of electron microscopy, indicated a multiscale nature for the pore-matrix microstructure. A structural parameter obtained from the analysis of the scattering curves, is proposed as indicator of maximum firing temperature through the implementation of a linear calibration curve. Such method has been successfully tested on a material of industrial production and can be considered of interest for the production of custom made replacement materials in the conservation of cultural heritage or for the characterization of the manufacturing process of archaeological fired-clay objects. Textural features originated by the forming process of extrusion have been detected as anisotropy of the pore network. They are still present above 1000 °C and, because of the use of screw extrusion, they are observed in both sections cut parallel and perpendicular to the direction of extrusion. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2019 Elektronická adresa https://doi.org/10.1016/j.clay.2018.09.002
Počet záznamů: 1