Jenkel, Kai‐Daniel ; Sánchez‐Pastor, Jesús ; Baloochian, Mohammad Mahdi ; Jakoby, Rolf ; Sakaki, Masoud ; Jiménez‐Sáez, Alejandro ; Benson, Niels (2024)
Effect of sintering temperature on the dielectric properties of 3D‐printed alumina (Al₂O₃) in the W‐band.
In: Journal of the American Ceramic Society, 2024, 107 (4)
doi: 10.26083/tuprints-00027100
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
This contribution discusses the impact of sintering temperatures on dielectric properties of 3D‐printed alumina (Al₂O₃) in the W‐band, by evaluating high quality factor (−Q) resonators integrated in a 2D photonic crystal structure. By varying the sintering temperature of the lithography‐based ceramic manufactured (LCM) samples, the microstructure of the material can be defined, which has a direct impact on the dielectric permittivity and material losses. Using a highly accurate photonic crystal structure, with a dimensional variation below 2% from print to print, an accurate extraction and evaluation of the dielectric material properties could be achieved. The relative permittivity of the alumina was tuned from 4.4 at 1250°C to 9.2 at 1650°C, whereas the observed change in dielectric losses was moderate. The maximum in observed dielectric loss for samples sintered at the lowest evaluated temperature, only yields an average value of 30 × 10⁻⁴. This demonstrates the versatility of the LCM technology for mm‐ and sub‐mm‐wave applications and its possibilities for material tuneability.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Jenkel, Kai‐Daniel ; Sánchez‐Pastor, Jesús ; Baloochian, Mohammad Mahdi ; Jakoby, Rolf ; Sakaki, Masoud ; Jiménez‐Sáez, Alejandro ; Benson, Niels |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Effect of sintering temperature on the dielectric properties of 3D‐printed alumina (Al₂O₃) in the W‐band |
| Sprache: | Englisch |
| Publikationsjahr: | 18 Juni 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 1 Februar 2024 |
| Ort der Erstveröffentlichung: | Oxford |
| Verlag: | Wiley-Blackwell |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the American Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 107 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.26083/tuprints-00027100 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/27100 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | This contribution discusses the impact of sintering temperatures on dielectric properties of 3D‐printed alumina (Al₂O₃) in the W‐band, by evaluating high quality factor (−Q) resonators integrated in a 2D photonic crystal structure. By varying the sintering temperature of the lithography‐based ceramic manufactured (LCM) samples, the microstructure of the material can be defined, which has a direct impact on the dielectric permittivity and material losses. Using a highly accurate photonic crystal structure, with a dimensional variation below 2% from print to print, an accurate extraction and evaluation of the dielectric material properties could be achieved. The relative permittivity of the alumina was tuned from 4.4 at 1250°C to 9.2 at 1650°C, whereas the observed change in dielectric losses was moderate. The maximum in observed dielectric loss for samples sintered at the lowest evaluated temperature, only yields an average value of 30 × 10⁻⁴. This demonstrates the versatility of the LCM technology for mm‐ and sub‐mm‐wave applications and its possibilities for material tuneability. |
| Freie Schlagworte: | additive manufacturing, alumina, dielectric loss, dielectric materials/properties, permittivity, sinter/sintering |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-271003 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 621.3 Elektrotechnik, Elektronik 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) |
| Hinterlegungsdatum: | 18 Jun 2024 12:49 |
| Letzte Änderung: | 20 Jun 2024 12:25 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Effect of sintering temperature on the dielectric properties of 3D‐printed alumina (Al₂O₃) in the W‐band. (deposited 18 Jun 2024 12:49) [Gegenwärtig angezeigt]
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