Bruns, Sebastian ; Minnert, Christian ; Pethö, Laszlo ; Michler, Johann ; Durst, Karsten (2023)
Room Temperature Viscous Flow of Amorphous Silica Induced by Electron Beam Irradiation.
In: Advanced Science, 2023, 10 (7)
doi: 10.26083/tuprints-00023715
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The increasing use of oxide glasses in high‐tech applications illustrates the demand of novel engineering techniques on nano‐ and microscale. Due to the high viscosity of oxide glasses at room temperature, shaping operations are usually performed at temperatures close or beyond the point of glass transition Tg. Those treatments, however, are global and affect the whole component. It is known from the literature that electron irradiation facilitates the viscous flow of amorphous silica near room temperature for nanoscale components. At the micrometer scale, however, a comprehensive study on this topic is still pending. In the present study, electron irradiation inducing viscous flow at room temperature is observed using a micropillar compression approach and amorphous silica as a model system. A comparison to high temperature yielding up to a temperature of 1100 °C demonstrates that even moderate electron irradiation resembles the mechanical response of 600 °C and beyond. As an extreme case, a yield strength as low as 300 MPa is observed with a viscosity indicating that Tg has been passed. Those results show that electron irradiation‐facilitated viscous flow is not limited to the nanoscale which offers great potential for local microengineering.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Bruns, Sebastian ; Minnert, Christian ; Pethö, Laszlo ; Michler, Johann ; Durst, Karsten |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Room Temperature Viscous Flow of Amorphous Silica Induced by Electron Beam Irradiation |
| Sprache: | Englisch |
| Publikationsjahr: | 27 November 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2023 |
| Ort der Erstveröffentlichung: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Science |
| Jahrgang/Volume einer Zeitschrift: | 10 |
| (Heft-)Nummer: | 7 |
| Kollation: | 9 Seiten |
| DOI: | 10.26083/tuprints-00023715 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23715 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | The increasing use of oxide glasses in high‐tech applications illustrates the demand of novel engineering techniques on nano‐ and microscale. Due to the high viscosity of oxide glasses at room temperature, shaping operations are usually performed at temperatures close or beyond the point of glass transition Tg. Those treatments, however, are global and affect the whole component. It is known from the literature that electron irradiation facilitates the viscous flow of amorphous silica near room temperature for nanoscale components. At the micrometer scale, however, a comprehensive study on this topic is still pending. In the present study, electron irradiation inducing viscous flow at room temperature is observed using a micropillar compression approach and amorphous silica as a model system. A comparison to high temperature yielding up to a temperature of 1100 °C demonstrates that even moderate electron irradiation resembles the mechanical response of 600 °C and beyond. As an extreme case, a yield strength as low as 300 MPa is observed with a viscosity indicating that Tg has been passed. Those results show that electron irradiation‐facilitated viscous flow is not limited to the nanoscale which offers great potential for local microengineering. |
| Freie Schlagworte: | amorphous silica, electron beam irradiation, high temperature testing, micropillar compression, nanoindentation, viscosity |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-237155 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde |
| Hinterlegungsdatum: | 27 Nov 2023 14:07 |
| Letzte Änderung: | 28 Nov 2023 06:47 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Room Temperature Viscous Flow of Amorphous Silica Induced by Electron Beam Irradiation. (deposited 27 Nov 2023 14:07) [Gegenwärtig angezeigt]
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