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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68081723:_____/15:00448261 RIV/67985891:_____/15:00448261

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP107%2F12%2F2445" target="_blank" >GAP107/12/2445: SiOC keramická pěna z pyrolyzovaného polymerního prekurzoru jako jádro tepelně odolných sendvičových struktur</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

—

Svazek periodika

41

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

6237-6247

Kód UT WoS článku

000353176300013

EID výsledku v databázi Scopus

2-s2.0-84925355081