Changes in structure and in mechanical properties during the pyrolysis conversion of crosslinked polymethylsiloxane and polymethylphenylsiloxane resins to silicon oxycarbide glass

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F15%3A00448261" target="_blank" >RIV/61389013:_____/15:00448261 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/15:00448261 RIV/67985891:_____/15:00448261
Result on the web
<a href="http://dx.doi.org/10.1016/j.ceramint.2015.01.034" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2015.01.034</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2015.01.034" target="_blank" >10.1016/j.ceramint.2015.01.034</a>

Result language
angličtina
Original language name
Changes in structure and in mechanical properties during the pyrolysis conversion of crosslinked polymethylsiloxane and polymethylphenylsiloxane resins to silicon oxycarbide glass
Original language description
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 an
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JI - Composite materials
OECD FORD branch
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Project
<a href="/en/project/GAP107%2F12%2F2445" target="_blank" >GAP107/12/2445: SiOC ceramic foam from pyrolyzed polymer precursor as a core of thermally stable composite sandwich structures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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