Liebau, Verena ; Hauser, Ralf ; Riedel, Ralf (2004)
Amorphous SiBCO ceramics derived from novel polymeric precursors.
In: Comptes Rendus Chimie, 7 (5)
doi: 10.1016/j.crci.2003.11.012
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
New polymeric precursors suitable to form boron containing silicon oxycarbide glass were synthesized by the hydroboration reaction of 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane with borane dimethylsulphide. The obtained polymers denoted as poly(organoborosiloxanes) were characterized by elemental analysis, thermal gravimetric analysis in combination with in situ mass spectrometry (TG/MS), FT-IR and Raman spectroscopy. The polymer-to-ceramic transformation was achieved at 1100 °C in inert argon atmosphere yielding black and X-ray amorphous SiBCO ceramics thermally stable up to 1200 °C. At temperatures exceeding 1300 °C crystallization forming β-SiC was found along with decomposition of the SiBCO matrix. Crystalline silica phases were not formed during annealing of SiBCO up to 1500 °C. To cite this article: V. Liebau et al., C. R. Chimie 7 (2004).
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2004 |
| Autor(en): | Liebau, Verena ; Hauser, Ralf ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Amorphous SiBCO ceramics derived from novel polymeric precursors |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2004 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Comptes Rendus Chimie |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1016/j.crci.2003.11.012 |
| URL / URN: | https://doi.org/10.1016/j.crci.2003.11.012 |
| Kurzbeschreibung (Abstract): | New polymeric precursors suitable to form boron containing silicon oxycarbide glass were synthesized by the hydroboration reaction of 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane with borane dimethylsulphide. The obtained polymers denoted as poly(organoborosiloxanes) were characterized by elemental analysis, thermal gravimetric analysis in combination with in situ mass spectrometry (TG/MS), FT-IR and Raman spectroscopy. The polymer-to-ceramic transformation was achieved at 1100 °C in inert argon atmosphere yielding black and X-ray amorphous SiBCO ceramics thermally stable up to 1200 °C. At temperatures exceeding 1300 °C crystallization forming β-SiC was found along with decomposition of the SiBCO matrix. Crystalline silica phases were not formed during annealing of SiBCO up to 1500 °C. To cite this article: V. Liebau et al., C. R. Chimie 7 (2004). |
| Freie Schlagworte: | Hydroboration, Poly(borosiloxane), SiBCO ceramic |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 17 Dez 2018 11:58 |
| Letzte Änderung: | 17 Dez 2018 11:58 |
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