TY  - JOUR
AU  - Nur, Khushnuda
AU  - Zubair, Muhammad
AU  - Gibson, J S. K-L.
AU  - Sandlöbes-Haut, Stefanie
AU  - Mayer, Joachim
AU  - Bram, Martin
AU  - Guillon, Olivier
TI  - Mechanical properties of cold sintered ZnO investigated by nanoindentation and micro-pillar testing
JO  - Journal of the European Ceramic Society
VL  - 42
IS  - 2
SN  - 0955-2219
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2021-03988
SP  - 512-524
PY  - 2021
AB  - Characteristic densification in cold sintered microstructures could also have a strong influence in defining their mechanical response. For the first time, nanoindentation and micro-pillar testing is used to study these details. Based on our recent work, we selected cold sintered (250 °C, ∼ 99 % dense) and conventionally sintered (900 °C, ∼ 98 % dense) ZnO samples. Hardness, elastic modulus and compressive stress of cold sintered samples were measured to be 5.5 GPa ± 0.5, 100 GPa ± 5 and ∼ 1.2 GPa, respectively. Same values for conventionally sintered ZnO were 4.8 GPa ± 0.6, 109 GPa ± 6 and 0.8 GPa, respectively. The distinctive nature of grain boundary regions in cold sintered samples were found to influence the deformation behavior of these samples, as confirmed by TEM investigations. Our study reveals the potential of cold sintering and use of selected testing techniques as suitable choice.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000722272300007
DO  - DOI:10.1016/j.jeurceramsoc.2021.10.011
UR  - https://juser.fz-juelich.de/record/902030
ER  -