Bernauer, Jan ; Kredel, Samuel Aeneas ; Ionescu, Emanuel ; Riedel, Ralf (2024)
Polymer‐derived ceramic coatings with excellent thermal cycling stability.
In: Advanced Engineering Materials, 26 (17)
doi: 10.1002/adem.202301820
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
In the present work, transition metal‐containing preceramic silicon polymers were synthesized via chemical modification of a commercially available organopolysilazane with Hf and Ta amido complexes as well as with borane dimethyl sulfide complex. The incorporation of transition metals into the polymer structure, their influence on ceramization and processability were thoroughly investigated. Moreover, the prepared preceramics were coated onto silicon wafers via spin coating and converted into crack‐free, amorphous SiHfTa(B)CN‐based ceramic coatings with excellent adhesion to the substrate. The composition of the ceramic coatings was investigated via X‐ray photoelectron spectroscopy (XPS) and their high‐temperature behavior was studied via oxidation tests performed at 1100 °C. Moreover, a thermal cycling procedure to temperatures above 1250 °C with rapid heating and cooling rates (i.e., in the range of 100–120 K s⁻¹) was applied to the ceramic coating, which showed no damage even after ten thermal cycles, indicating their outstanding performance and their potential for use as environmental barrier coatings at high temperatures.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Bernauer, Jan ; Kredel, Samuel Aeneas ; Ionescu, Emanuel ; Riedel, Ralf |
| Art des Eintrags: | Bibliographie |
| Titel: | Polymer‐derived ceramic coatings with excellent thermal cycling stability |
| Sprache: | Englisch |
| Publikationsjahr: | September 2024 |
| Ort: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Engineering Materials |
| Jahrgang/Volume einer Zeitschrift: | 26 |
| (Heft-)Nummer: | 17 |
| Kollation: | 15 Seiten |
| DOI: | 10.1002/adem.202301820 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | In the present work, transition metal‐containing preceramic silicon polymers were synthesized via chemical modification of a commercially available organopolysilazane with Hf and Ta amido complexes as well as with borane dimethyl sulfide complex. The incorporation of transition metals into the polymer structure, their influence on ceramization and processability were thoroughly investigated. Moreover, the prepared preceramics were coated onto silicon wafers via spin coating and converted into crack‐free, amorphous SiHfTa(B)CN‐based ceramic coatings with excellent adhesion to the substrate. The composition of the ceramic coatings was investigated via X‐ray photoelectron spectroscopy (XPS) and their high‐temperature behavior was studied via oxidation tests performed at 1100 °C. Moreover, a thermal cycling procedure to temperatures above 1250 °C with rapid heating and cooling rates (i.e., in the range of 100–120 K s⁻¹) was applied to the ceramic coating, which showed no damage even after ten thermal cycles, indicating their outstanding performance and their potential for use as environmental barrier coatings at high temperatures. |
| Freie Schlagworte: | ceramic coating, organopolysilazane, polymer‐derived ceramic, precursor‐derived ceramic, SiCN, silicon carbonitride, single source precursor |
| ID-Nummer: | Artikel-ID: 2301820 |
| Zusätzliche Informationen: | Special Issue: Materials Compounds from Composite Materials for Applications in Extreme Conditions |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Werkstofftechnik und Ressourcenmanagement |
| Hinterlegungsdatum: | 19 Nov 2024 06:43 |
| Letzte Änderung: | 19 Nov 2024 10:28 |
| PPN: | 523640137 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Polymer‐Derived Ceramic Coatings with Excellent Thermal Cycling Stability. (deposited 18 Nov 2024 12:21)
- Polymer‐derived ceramic coatings with excellent thermal cycling stability. (deposited 19 Nov 2024 06:43) [Gegenwärtig angezeigt]
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