Tailoring Toughness and Mechanical Reliability by Controlled Defects: Nature-Inspired Composite Laminates of Laser-Perforated Yttria-Stabilized Zirconia

Publikationstyp
Journal Article
Date Issued
2016-09
Sprache
English
Author(s)
Behr, Sebastian  
Köllner, Andre  
Schneider, Gerold A.  
Institut
Keramische Hochleistungswerkstoffe M-9  
TORE-URI
http://hdl.handle.net/11420/5200
Journal
Advanced engineering materials  
Volume
18
Issue
11
Start Page
1877
End Page
1883
Citation
Advanced Engineering Materials 11 (18): 1877-1883 (2016)
Publisher DOI
10.1002/adem.201600128
Scopus ID
2-s2.0-84987617506
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