Breaking the Limit of Micro‐Ductility in Oxide Glasses
Abstract Oxide glasses are one of the most important engineering and functional material families owing to their unique features, such as tailorable physical properties. However, at the same time intrinsic brittleness has been their main drawback, which severely restricts many applications. Despite...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-09-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.201901281 |
| _version_ | 1818357703005700096 |
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| author | Kacper Januchta Malwina Stepniewska Lars R. Jensen Yang Zhang Marcel A. J. Somers Mathieu Bauchy Yuanzheng Yue Morten M. Smedskjaer |
| author_facet | Kacper Januchta Malwina Stepniewska Lars R. Jensen Yang Zhang Marcel A. J. Somers Mathieu Bauchy Yuanzheng Yue Morten M. Smedskjaer |
| author_sort | Kacper Januchta |
| collection | DOAJ |
| description | Abstract Oxide glasses are one of the most important engineering and functional material families owing to their unique features, such as tailorable physical properties. However, at the same time intrinsic brittleness has been their main drawback, which severely restricts many applications. Despite much progress, a breakthrough in developing ultra‐damage‐resistant and ductile oxide glasses still needs to be made. Here, a critical advancement toward such oxide glasses is presented. In detail, a bulk oxide glass with a record‐high crack resistance is obtained by subjecting a caesium aluminoborate glass to surface aging under humid conditions, enabling it to sustain sharp contact deformations under loads of ≈500 N without forming any strength‐limiting cracks. This ultra‐high crack resistance exceeds that of the annealed oxide glasses by more than one order of magnitude, making this glass micro‐ductile. In addition, a remarkable indentation behavior, i.e., a time‐dependent shrinkage of the indent cavity, is demonstrated. Based on structural analyses, a molecular‐scale deformation model to account for both the ultra‐high crack resistance and the time‐dependent shrinkage in the studied glass is proposed. |
| first_indexed | 2024-12-13T20:17:19Z |
| format | Article |
| id | doaj.art-e97e9682609f4b8c9208ea5ce3a2dd8e |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-12-13T20:17:19Z |
| publishDate | 2019-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-e97e9682609f4b8c9208ea5ce3a2dd8e2022-12-21T23:32:47ZengWileyAdvanced Science2198-38442019-09-01618n/an/a10.1002/advs.201901281Breaking the Limit of Micro‐Ductility in Oxide GlassesKacper Januchta0Malwina Stepniewska1Lars R. Jensen2Yang Zhang3Marcel A. J. Somers4Mathieu Bauchy5Yuanzheng Yue6Morten M. Smedskjaer7Department of Chemistry and Bioscience Aalborg University Fredrik Bajers Vej 7H 9220 Aalborg East DenmarkDepartment of Chemistry and Bioscience Aalborg University Fredrik Bajers Vej 7H 9220 Aalborg East DenmarkDepartment of Materials and Production Aalborg University Fibigerstræde 16 9220 Aalborg East DenmarkDepartment of Mechanical Engineering Technical University of Denmark Produktionstorvet 425 2800 Kongens Lyngby DenmarkDepartment of Mechanical Engineering Technical University of Denmark Produktionstorvet 425 2800 Kongens Lyngby DenmarkDepartment of Civil and Environmental Engineering University of California Los Angeles 7400 Boelter Hall Los Angeles CA 90095 USADepartment of Chemistry and Bioscience Aalborg University Fredrik Bajers Vej 7H 9220 Aalborg East DenmarkDepartment of Chemistry and Bioscience Aalborg University Fredrik Bajers Vej 7H 9220 Aalborg East DenmarkAbstract Oxide glasses are one of the most important engineering and functional material families owing to their unique features, such as tailorable physical properties. However, at the same time intrinsic brittleness has been their main drawback, which severely restricts many applications. Despite much progress, a breakthrough in developing ultra‐damage‐resistant and ductile oxide glasses still needs to be made. Here, a critical advancement toward such oxide glasses is presented. In detail, a bulk oxide glass with a record‐high crack resistance is obtained by subjecting a caesium aluminoborate glass to surface aging under humid conditions, enabling it to sustain sharp contact deformations under loads of ≈500 N without forming any strength‐limiting cracks. This ultra‐high crack resistance exceeds that of the annealed oxide glasses by more than one order of magnitude, making this glass micro‐ductile. In addition, a remarkable indentation behavior, i.e., a time‐dependent shrinkage of the indent cavity, is demonstrated. Based on structural analyses, a molecular‐scale deformation model to account for both the ultra‐high crack resistance and the time‐dependent shrinkage in the studied glass is proposed.https://doi.org/10.1002/advs.201901281crack resistancedeformationglassesindentationmicro‐ductility |
| spellingShingle | Kacper Januchta Malwina Stepniewska Lars R. Jensen Yang Zhang Marcel A. J. Somers Mathieu Bauchy Yuanzheng Yue Morten M. Smedskjaer Breaking the Limit of Micro‐Ductility in Oxide Glasses Advanced Science crack resistance deformation glasses indentation micro‐ductility |
| title | Breaking the Limit of Micro‐Ductility in Oxide Glasses |
| title_full | Breaking the Limit of Micro‐Ductility in Oxide Glasses |
| title_fullStr | Breaking the Limit of Micro‐Ductility in Oxide Glasses |
| title_full_unstemmed | Breaking the Limit of Micro‐Ductility in Oxide Glasses |
| title_short | Breaking the Limit of Micro‐Ductility in Oxide Glasses |
| title_sort | breaking the limit of micro ductility in oxide glasses |
| topic | crack resistance deformation glasses indentation micro‐ductility |
| url | https://doi.org/10.1002/advs.201901281 |
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