A ceramic that bends instead of shattering

The microstructure of the ceramic silicon nitride can be tuned to create plasticity Ceramic materials are, at least in principle, capable of plastic deformation at room temperature ( 1 ). If ceramics can be shaped by hammering, bending, or pulling without fracturing, this will vastly expand the rang...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Science (American Association for the Advancement of Science) 2022-10, Vol.378 (6618), p.359-360
1. Verfasser: Frankberg, Erkka J.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The microstructure of the ceramic silicon nitride can be tuned to create plasticity Ceramic materials are, at least in principle, capable of plastic deformation at room temperature ( 1 ). If ceramics can be shaped by hammering, bending, or pulling without fracturing, this will vastly expand the range of applications for these materials. For example, the strong ionic and covalent bonding in ceramics, combined with this hypothetical plasticity, could lead to materials that are lighter and stronger than even the best metal alloys of today. On page 371 of this issue, Zhang et al. ( 2 ) present how silicon nitride (Si 3 N 4 ), one of the most versatile engineering ceramic materials, can be made to exhibit plasticity at room temperature. Their proof-of-concept experiment and simulation results offer a potential route to realizing the dream of flexible ceramics.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.ade7637