Tuning the carbon content of silicon carbonitride SiCN(O) materials obtained from hydrosilylation-derived polysilazanes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00603463" target="_blank" >RIV/61389013:_____/25:00603463 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0955221924010501?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221924010501?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2024.117177" target="_blank" >10.1016/j.jeurceramsoc.2024.117177</a>

Result language

angličtina

Original language name

Tuning the carbon content of silicon carbonitride SiCN(O) materials obtained from hydrosilylation-derived polysilazanes

Original language description

Polymer-derived silicon carbonitride SiCN(O) materials with tunable carbon content were obtained from polysilazanes synthesized from silazane monomers, and carbon-containing crosslinkers via the hydrosilylation reaction. The polysilazanes were characterized by ATR-FTIR and Raman spectroscopy in terms of the presence of various functional groups. Three polysilazanes were chosen as preceramic precursors for the materials, and pyrolyzed at 800°C in argon. DRIFT spectroscopy and 29Si MAS NMR confirmed the presence of Si–N bonds in the materials, and Si–C bonds in one sample only, as well as oxygen contamination in the form of Si–O bonds in all samples. Consequently, the obtained materials should be referred to as SiCN(O). Raman spectroscopy and 13C MAS NMR indicate that the materials contain the free carbon phase. Elemental analysis revealed that the carbon content in SiCN(O) materials can be adjusted from 25.7 at% to 45.3 at% by selecting appropriate silazane monomers and crosslinkers.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

1873-619X

Volume of the periodical

45

Issue of the periodical within the volume

6

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

14

Pages from-to

117177

UT code for WoS article

001398898400001

EID of the result in the Scopus database

2-s2.0-85214339004