Počet záznamů: 1
Changes in structure and in mechanical properties during the pyrolysis conversion of crosslinked polymethylsiloxane and polymethylphenylsiloxane resins to silicon oxycarbide glass
- 1.
SYSNO ASEP 0448261 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Changes in structure and in mechanical properties during the pyrolysis conversion of crosslinked polymethylsiloxane and polymethylphenylsiloxane resins to silicon oxycarbide glass Tvůrce(i) Černý, Martin (USMH-B) RID, ORCID, SAI
Chlup, Zdeněk (UFM-A) RID, ORCID
Strachota, Adam (UMCH-V) RID, ORCID
Halasová, Martina (UFM-A)
Rýglová, Šárka (USMH-B) RID, ORCID, SAI
Schweigstillová, Jana (USMH-B) RID, ORCID, SAI
Svítilová, Jaroslava (USMH-B)
Havelcová, Martina (USMH-B) RID, ORCIDZdroj.dok. Ceramics International. - : Elsevier - ISSN 0272-8842
Roč. 41, č. 5 (2015), s. 6237-6247Poč.str. 11 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova hardness ; silicon oxycarbide ; pyrolysis ; indentation modulus ; precursor Vědní obor RIV JI - Kompozitní materiály Vědní obor RIV – spolupráce Ústav fyziky materiálu - Keramika, žáruvzdorné materiály a skla CEP GAP107/12/2445 GA ČR - Grantová agentura ČR Institucionální podpora USMH-B - RVO:67985891 ; UFM-A - RVO:68081723 ; UMCH-V - RVO:61389013 UT WOS 000353176300013 EID SCOPUS 84925355081 DOI 10.1016/j.ceramint.2015.01.034 Anotace The subject of this study is the thermally induced conversion of cross-linked polymethylsiloxane and polymethylphenylsiloxane resins into inorganic silicon oxycarbide glass. This topic is studied in view of the changes in the chemical structure of the precursor and in the context of the changes in hardness and elasticity, pyrolysis weight losses, density changes, and sample shrinkage. Two aspects of the pyrolysis process were studied: i) the effect of the pyrolysis temperature (tested from 400 to 1000 degrees C) and the effect of pyrolysis time in cases of isothermal pyrolyses (at 520 degrees C and 650 degrees C). The mechanical properties were evaluated by means of micro-indentation tests, while the characterisation of the chemical structure was performed via FTIR spectroscopy, combustion analysis and EDS. The results of these experiments are discussed in the context of the use of examined materials as a precursor for the composite matrix or the sandwich core. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved. Pracoviště Ústav struktury a mechaniky hornin Kontakt Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Rok sběru 2016
Počet záznamů: 1