Szczegóły publikacji
Opis bibliograficzny
Thermal evolution of ladder-like silsesquioxanes during formation of black glasses / Piotr JELEŃ, Magdalena SZUMERA, Magdalena GAWĘDA, Elżbieta DŁUGOŃ, Maciej SITARZ // Journal of Thermal Analysis and Calorimetry ; ISSN 1388-6150. — Tytuł poprz.: Journal of Thermal Analysis ; ISSN: 0368-4466. — 2017 — vol. 130 iss. 1, s. 103–111. — Bibliogr. s. 110–111, Abstr. — Publikacja dostępna online od: 2017-03-10
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 109133 |
|---|---|
| Data dodania do BaDAP | 2017-09-30 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10973-017-6249-9 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Thermal Analysis and Calorimetry |
Abstract
Pyrolysis of ladder-like silsesquioxanes in oxygen-free atmosphere leads to the formation of silicon oxycarbides (black glasses). Black glasses are materials of amorphous silica structure where some amount of O2− ions were replaced by C4− ions. This exchange leads to local increase in bonds density and therefore improvement in mechanical, thermal, and chemical properties. Thanks to this modification, silicon oxycarbide glasses can be used in a variety of applications like: protective coatings and interconnectors in solid oxide fuel cells. Xerogels were prepared by sol–gel method, and ladder-like silsesquioxanes were used as precursors. Samples were burned at 200–1000 °C in inert atmosphere. Structural studies in the middle infrared range (MIR) and SEM with EDX confirmed the presence of SiOC bonds in obtained materials. MIR analysis of solid samples together with TG/dTG measurements allowed defining the process for the formation of black glasses.
