Grammes, Thilo ; Limbach, René ; Bruns, Sebastian ; Wüllen, Leo van ; Ligny, Dominique de ; Kamitsos, Efstratios I. ; Durst, Karsten ; Wondraczek, Lothar ; Brauer, Delia S. (2024)
Tailoring the Mechanical Properties of Metaluminous Aluminosilicate Glasses by Phosphate Incorporation.
In: Frontiers in Materials, 2020, 7
doi: 10.26083/tuprints-00026699
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The characterization of aluminosilicate glasses is highly relevant in geosciences and for engineering applications such as reinforcement fibers or touchscreen covers. The incorporation of phosphate as a third network-forming species into these glasses offers unique opportunities for fine-tuning glass properties via changes in glass structure and polymerization. In this work, we studied melt-quenched aluminosilicate glasses within the system SiO2-Al2O3-Na2O-P2O5 with 50–70 mol% SiO2 and up to 7.5 mol% P2O5. All glasses were metaluminous (Al:Na = 1) in order to maximize the degree of polymerization. Increasing the phosphate content at the expense of NaAlO2 led to reduced glass polymerization and density, resulting in a decrease in elastic moduli and hardness and an increase in strain-rate sensitivity. When increasing the silica content by substituting SiO4 for AlO4 tetrahedra, network polymerization remained mostly unchanged, as confirmed by nearly constant hardness. Densification upon indentation was analyzed by Raman spectroscopy and finite element analysis. We find that the elastic properties and hardness of metaluminous phospho-aluminosilicate glasses are governed by changes in density and network polymerization. Other mechanical properties underlie more complex changes in glass structure.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Grammes, Thilo ; Limbach, René ; Bruns, Sebastian ; Wüllen, Leo van ; Ligny, Dominique de ; Kamitsos, Efstratios I. ; Durst, Karsten ; Wondraczek, Lothar ; Brauer, Delia S. |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Tailoring the Mechanical Properties of Metaluminous Aluminosilicate Glasses by Phosphate Incorporation |
| Sprache: | Englisch |
| Publikationsjahr: | 14 Oktober 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2020 |
| Ort der Erstveröffentlichung: | Lausanne, Switzerland |
| Verlag: | Frontiers Media |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Frontiers in Materials |
| Jahrgang/Volume einer Zeitschrift: | 7 |
| Kollation: | 18 Seiten |
| DOI: | 10.26083/tuprints-00026699 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/26699 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | The characterization of aluminosilicate glasses is highly relevant in geosciences and for engineering applications such as reinforcement fibers or touchscreen covers. The incorporation of phosphate as a third network-forming species into these glasses offers unique opportunities for fine-tuning glass properties via changes in glass structure and polymerization. In this work, we studied melt-quenched aluminosilicate glasses within the system SiO2-Al2O3-Na2O-P2O5 with 50–70 mol% SiO2 and up to 7.5 mol% P2O5. All glasses were metaluminous (Al:Na = 1) in order to maximize the degree of polymerization. Increasing the phosphate content at the expense of NaAlO2 led to reduced glass polymerization and density, resulting in a decrease in elastic moduli and hardness and an increase in strain-rate sensitivity. When increasing the silica content by substituting SiO4 for AlO4 tetrahedra, network polymerization remained mostly unchanged, as confirmed by nearly constant hardness. Densification upon indentation was analyzed by Raman spectroscopy and finite element analysis. We find that the elastic properties and hardness of metaluminous phospho-aluminosilicate glasses are governed by changes in density and network polymerization. Other mechanical properties underlie more complex changes in glass structure. |
| Freie Schlagworte: | glass, mechanical properties, density, aluminosilicate, phosphate, elastic properties, hardness, densification |
| ID-Nummer: | Artikel-ID: 115 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-266999 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| 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: | 14 Okt 2024 09:57 |
| Letzte Änderung: | 15 Okt 2024 05:48 |
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| Suche nach Titel in: | TUfind oder in Google |
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