Santhosh, Balanand ; Ionescu, Emanuel ; Andreolli, Francesco ; Biesuz, Mattia ; Reitz, Andreas ; Albert, Barbara ; Sorarù, Gian Domenico (2021)
Effect of pyrolysis temperature on the microstructure and thermal conductivity of polymer-derived monolithic and porous SiC ceramics.
In: Journal of the European Ceramic Society, 41 (2)
doi: 10.1016/j.jeurceramsoc.2020.09.028
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The present work investigates the influence of pyrolysis temperature on the microstructure and thermal conductivity (lambda) of polymer-derived SiC ceramics. For the study, both monolithic thin ceramic disks and highly porous reticulated foams were considered. The lambda of the polymer-derived SiC disks were measured, in the temperature range 100 degrees C-1000 degrees C, to amount between 0.5 W.m(-1). K-1 and 47 W.m(-1). K-1 ms (porosity 79.5 %-99.0 %), ranges between 0.03 W.m(-1). K-1 and 0.19 W.m(-1). K-1. The thermal transport in polymer-derived SiC ceramics was observed to be more significantly governed by the nanocrystalline to crystalline transition which occurs at pyrolysis temperatures above 1200 degrees C as compared to mesopore formations or the nature and amount of free carbon.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Santhosh, Balanand ; Ionescu, Emanuel ; Andreolli, Francesco ; Biesuz, Mattia ; Reitz, Andreas ; Albert, Barbara ; Sorarù, Gian Domenico |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of pyrolysis temperature on the microstructure and thermal conductivity of polymer-derived monolithic and porous SiC ceramics |
| Sprache: | Englisch |
| Publikationsjahr: | Februar 2021 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 41 |
| (Heft-)Nummer: | 2 |
| DOI: | 10.1016/j.jeurceramsoc.2020.09.028 |
| URL / URN: | https://doi.org/10.1016/j.jeurceramsoc.2020.09.028 |
| Kurzbeschreibung (Abstract): | The present work investigates the influence of pyrolysis temperature on the microstructure and thermal conductivity (lambda) of polymer-derived SiC ceramics. For the study, both monolithic thin ceramic disks and highly porous reticulated foams were considered. The lambda of the polymer-derived SiC disks were measured, in the temperature range 100 degrees C-1000 degrees C, to amount between 0.5 W.m(-1). K-1 and 47 W.m(-1). K-1 ms (porosity 79.5 %-99.0 %), ranges between 0.03 W.m(-1). K-1 and 0.19 W.m(-1). K-1. The thermal transport in polymer-derived SiC ceramics was observed to be more significantly governed by the nanocrystalline to crystalline transition which occurs at pyrolysis temperatures above 1200 degrees C as compared to mesopore formations or the nature and amount of free carbon. |
| Freie Schlagworte: | Polymer-derived ceramics, Monolithic SiC, Porous ceramics, SiC foams, Thermal conductivity, SILICON OXYCARBIDE GLASSES; STRUCTURAL-CHARACTERIZATION, MECHANICAL-PROPERTIES, CARBIDE FIBER, POLYCARBOSILANE, DENSE, FABRICATION, BEHAVIOR, PRECURSORS, STABILITY |
| Zusätzliche Informationen: | Funding Information: University of Trento (UniTn), Italy. Ministry of Education, Universities and Research (MIUR), Grant Numbers PRIN2017 - 2017FCFYHK, PRIN2017 - 2017PMR932 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie |
| Hinterlegungsdatum: | 18 Jan 2021 06:42 |
| Letzte Änderung: | 18 Jan 2021 06:42 |
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