TY  - JOUR
AU  - Porz, Lukas
AU  - Scherer, Michael
AU  - Muhammad, Qaisar Khushi
AU  - Higuchi, Kimitaka
AU  - Li, Yan
AU  - Koga, Shuhei
AU  - Nakamura, Atsutomo
AU  - Rheinheimer, Wolfgang
AU  - Frömling, Till
TI  - Microstructure and conductivity of blacklight‐sintered TiO 2 , YSZ, and Li 0.33 La 0.57 TiO 3
JO  - Journal of the American Ceramic Society
VL  - 105
IS  - 12
SN  - 0002-7820
CY  - Westerville, Ohio
PB  - Soc.
M1  - FZJ-2022-04070
SP  - 7030 - 7035
PY  - 2022
AB  - Rapid densification of ceramics has been realized and its merits were demonstrated through multiple approaches out of which UHS and flash sintering attract recent attention. So far, however, scalability remains difficult. A rise in throughput and scalability is enabled by the introduction of blacklight sintering powered by novel light source technology. Intense illumination with photon energy above the bandgap (blacklight) allows high absorption efficiency and, hence, very rapid, contactless heating for all ceramics. While heating the ceramic directly with light without any furnace promises scalability, it simultaneously offers highly accurate process control. For the technology transfer to industry, attainable material quality needs to be assured. Here, we demonstrate the excellent microstructure quality of blacklight-sintered ceramics observed with ultrahigh voltage electron microscopy revealing an option to tune nanoporosity. Moreover, we confirm that electronic, electron, oxygen, and lithium-ion conductivities are equal to conventionally sintered ceramics. This gives the prospect of transmitting the merits of rapid densification to the scale of industrial kilns.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000842078100001
DO  - DOI:10.1111/jace.18686
UR  - https://juser.fz-juelich.de/record/910698
ER  -