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Tailoring Toughness and Mechanical Reliability by Controlled Defects: Nature-Inspired Composite Laminates of Laser-Perforated Yttria-Stabilized Zirconia
Publikationstyp
Journal Article
Publikationsdatum
2016-09
Sprache
English
TORE-URI
Enthalten in
Volume
18
Issue
11
Start Page
1877
End Page
1883
Citation
Advanced Engineering Materials 11 (18): 1877-1883 (2016)
Publisher DOI
Scopus ID
Publisher
Wiley-VCH Verl.
Researchers investigate the role of nature-inspired composite laminates of laser-perforated yttria-stabilized zirconia in tailoring toughness and mechanical reliability by controlled defects. They attempt to combine advantages of both continuously reinforced multilayered ceramic composites like sponge spicule and discontinuously reinforced nacre. For this purpose, they use laserperforated strips of 3-mol% yttria-stabilized zirconia (3YSZ) and laminate them with toughened epoxy. In these composites, the laser-perforation guides the crack for a higher density of crack deflections and pull-outs and thus higher toughness while the ceramic bridges remaining between holes cause the perforation to stay considerably stiff and strong.
DDC Class
620: Ingenieurwissenschaften