Počet záznamů: 1
Effect of high temperature on the microstructural evolution of fiber reinforced geopolymer composite
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SYSNO ASEP 0512072 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effect of high temperature on the microstructural evolution of fiber reinforced geopolymer composite Tvůrce(i) Samal, Sneha Manjaree (FZU-D) ORCID, RID Celkový počet autorů 1 Číslo článku e01779 Zdroj.dok. Heliyon. - : Elsevier - ISSN 2405-8440
Roč. 5, č. 5 (2019), s. 1-10Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova materials science ; cvil engineering ; mechanical engineering ; structural engineering Vědní obor RIV JI - Kompozitní materiály Obor OECD Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics Způsob publikování Open access Institucionální podpora FZU-D - RVO:68378271 UT WOS 000473561400204 EID SCOPUS 85066148420 DOI 10.1016/j.heliyon.2019.e01779 Anotace Physical evolution of geopolymeric minerals derived from metakaolin and synthesized with sodium, mixed-alkali and potassium activating solutions (Na- K) during thermal exposure. The geopolymer composites were prepared with 40 V% of fiber reinforcement such as carbon, E-glass, and basalt at the direction of in plain. Fiber reinforced geopolymer composites were exposed to the room and elevated temperatures inside the oven at air medium for a period of 30 min. The durability of the composites and internal structures with surface microstructures were examined after high temperature exposures. According to the results, geopolymer implied a prominent influence on the thermal shrinkage with the increasing of Si/Al ratios. This was attributed to the densification caused by reduction in porosity during dehydroxylation and sintering. In the case of carbon fiber reinforced composite shows transition in strength after 600 °C due to the oxide protective layer that increases the flexural strength and toughness of the composite. The flexural strength of the carbon reinforced composite increases from 17.8 to 55.8 MPa at 1000 °C. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2020 Elektronická adresa http://hdl.handle.net/11104/0302282
Počet záznamů: 1