TY  - JOUR
AU  - du Merac, Marc Rubat
AU  - Bram, Martin
AU  - Malzbender, Jürgen
AU  - Ziegner, Mirko
AU  - Rasinski, Marcin
AU  - Guillon, Olivier
TI  - Increasing Fracture Toughness and Transmittance of Transparent Ceramics using Functional Low-Thermal Expansion Coatings
JO  - Scientific reports
VL  - 8
IS  - 1
SN  - 2045-2322
CY  - [London]
PB  - Macmillan Publishers Limited, part of Springer Nature
M1  - FZJ-2018-06816
SP  - 15644
PY  - 2018
AB  - Transparent polycrystalline ceramics have the potential to enable applications no other materials can, but to do so their strength and toughness must be improved. However, surface strengthening treatments like those used for glasses have so far remained elusive. Here for the first time, we report on engineering unprecedented surface compression, of the magnitude achieved for ion-exchange strengthened glasses (~750 MPa) in transparent ceramics. This was achieved by applying functional, low thermal-expansion yttria coatings onto yttria-stabilized zirconia substrates and thermally treating. In some instances, the treatment more than doubled the fracture toughness while simultaneously increasing light transmittance.
LB  - PUB:(DE-HGF)16
C6  - pmid:30353101
UR  - <Go to ISI:>//WOS:000448050000006
DO  - DOI:10.1038/s41598-018-33919-5
UR  - https://juser.fz-juelich.de/record/857853
ER  -