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Reinforcement of nanoglasses by interface strengthening

Kalcher, Constanze ; Adjaoud, Omar ; Rohrer, Jochen ; Stukowski, Alexander ; Albe, Karsten :
Reinforcement of nanoglasses by interface strengthening.
[Online-Edition: https://doi.org/10.1016/j.scriptamat.2017.08.004]
In: Scripta Materialia, 141 pp. 115-119. ISSN 13596462
[Artikel], (2017) (Eingereicht)

Offizielle URL: https://doi.org/10.1016/j.scriptamat.2017.08.004

Kurzbeschreibung (Abstract)

Nanoglasses consist of glassy grains connected by an amorphous interface. While internal interfaces in nanoglasses help to prevent brittle failure, they are usually not beneficial to the glasses overall strength. In this molecular dynamics study, we manipulate the glass–glass interfaces of a Cu–Zr nanoglass, such that they are replaced by stronger crystalline interphases. Analogous to grain boundary strengthening in crystalline materials, we show that it is possible to reinforce the nanoglass without compromising its ductility.

Typ des Eintrags: Artikel
Erschienen: 2017
Autor(en): Kalcher, Constanze ; Adjaoud, Omar ; Rohrer, Jochen ; Stukowski, Alexander ; Albe, Karsten
Titel: Reinforcement of nanoglasses by interface strengthening
Sprache: Englisch
Kurzbeschreibung (Abstract):

Nanoglasses consist of glassy grains connected by an amorphous interface. While internal interfaces in nanoglasses help to prevent brittle failure, they are usually not beneficial to the glasses overall strength. In this molecular dynamics study, we manipulate the glass–glass interfaces of a Cu–Zr nanoglass, such that they are replaced by stronger crystalline interphases. Analogous to grain boundary strengthening in crystalline materials, we show that it is possible to reinforce the nanoglass without compromising its ductility.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Scripta Materialia
Band: 141
Freie Schlagworte: Metallic glass, Grain interfaces, Tension test, Molecular dynamics, Nanoglass
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung
Zentrale Einrichtungen > Hochschulrechenzentrum (HRZ) > Hochleistungsrechner
Hinterlegungsdatum: 24 Aug 2017 14:42
Offizielle URL: https://doi.org/10.1016/j.scriptamat.2017.08.004
ID-Nummer: doi:10.1016/j.scriptamat.2017.08.004
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