Petry, Nils‐Christian ; Thor, Nathalie ; Bernauer, Jan ; Ulrich, Anke Silvia ; Ionescu, Emanuel ; Riedel, Ralf ; Pundt, Astrid ; Galetz, Mathias Christian ; Lepple, Maren (2024)
Oxidation resistance and microstructural analysis of polymer‐derived (HfₓTa₁₋ₓ)C/SiC ceramic nanocomposites.
In: Advanced Engineering Materials, 26 (17)
doi: 10.1002/adem.202302023
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The oxidation behavior of polymer‐derived (HfₓTa₁₋ₓ)C/SiC nanocomposites at 1200 °C and 1400 °C for up to 100 h is investigated in this work. Overall, the chemical modification of the polycarbosilane‐based precursor with Hf and Ta leads to an improved oxidation behavior due to an increased densification. Shifting the Hf/Ta ratio from (Hf₀.₂Ta₀.₈)C/SiC to (Hf₀.₇Ta₀.₃)C/SiC results in an improved oxidation behavior due to Hf₆Ta₂O₁₇ formation and the reduction of Ta₂O₅ formation, which reduces cracking of the samples. The formation and microstructure of SiO₂ as well as the internal oxidation of (HfₓTa₁₋ₓ)C precipitates is explained by thermodynamic and kinetic considerations.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Petry, Nils‐Christian ; Thor, Nathalie ; Bernauer, Jan ; Ulrich, Anke Silvia ; Ionescu, Emanuel ; Riedel, Ralf ; Pundt, Astrid ; Galetz, Mathias Christian ; Lepple, Maren |
| Art des Eintrags: | Bibliographie |
| Titel: | Oxidation resistance and microstructural analysis of polymer‐derived (HfₓTa₁₋ₓ)C/SiC ceramic nanocomposites |
| 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.202302023 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The oxidation behavior of polymer‐derived (HfₓTa₁₋ₓ)C/SiC nanocomposites at 1200 °C and 1400 °C for up to 100 h is investigated in this work. Overall, the chemical modification of the polycarbosilane‐based precursor with Hf and Ta leads to an improved oxidation behavior due to an increased densification. Shifting the Hf/Ta ratio from (Hf₀.₂Ta₀.₈)C/SiC to (Hf₀.₇Ta₀.₃)C/SiC results in an improved oxidation behavior due to Hf₆Ta₂O₁₇ formation and the reduction of Ta₂O₅ formation, which reduces cracking of the samples. The formation and microstructure of SiO₂ as well as the internal oxidation of (HfₓTa₁₋ₓ)C precipitates is explained by thermodynamic and kinetic considerations. |
| Freie Schlagworte: | oxidation resistance, polymer‐derived ceramic nanocomposites, TEM, thermogravimetry, ultra‐high temperature ceramics |
| ID-Nummer: | Artikel-ID: 2302023 |
| Zusätzliche Informationen: | Special Issue: Materials Compounds from Composite Materials for Applications in Extreme Conditions |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Geowissenschaften > Fachgebiet Geomaterialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Werkstofftechnik und Ressourcenmanagement |
| Hinterlegungsdatum: | 05 Nov 2024 06:42 |
| Letzte Änderung: | 05 Nov 2024 13:49 |
| PPN: | 523188064 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Oxidation Resistance and Microstructural Analysis of Polymer‐Derived (HfₓTa₁₋ₓ)C/SiC Ceramic Nanocomposites. (deposited 04 Nov 2024 13:19)
- Oxidation resistance and microstructural analysis of polymer‐derived (HfₓTa₁₋ₓ)C/SiC ceramic nanocomposites. (deposited 05 Nov 2024 06:42) [Gegenwärtig angezeigt]
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