TY  - JOUR
AU  - Camara, Osmane
AU  - Xu, Qi
AU  - Park, Junbeom
AU  - Yu, Shicheng
AU  - Lu, Xin
AU  - Dzieciol, Krzysztof
AU  - Schierholz, Roland
AU  - Tempel, Hermann
AU  - Kungl, Hans
AU  - Chandramohan, George
AU  - Mayer, Joachim
AU  - Basak, Shibabrata
AU  - Eichel, Rüdiger-A.
TI  - Effect of Low Environmental Pressure on Sintering Behavior ofNASICON-Type Li1.3Al0.3Ti1.7(PO4)3 Solid Electrolytes: An In Situ ESEMStudy
JO  - Crystal growth & design
VL  - 23
SN  - 1528-7483
CY  - Washington, DC
PB  - ACS Publ.
M1  - FZJ-2023-01909
SP  - 1522-1529
PY  - 2023
AB  - Solid-state sintering at high temperatures is commonly used to densify solid electrolytes. Yet, optimizing phase purity, structure, and grain sizes of solid electrolytes is challenging due to the lack of understanding of relevant processes during sintering. Here, we use an in situ environmental scanning electron microscopy (ESEM) to monitor the sintering behavior of NASICON-type Li1.3Al0.3Ti1.7(PO4)3 (LATP) at low environmental pressures. Our results show that while no major morphological changes are observed at 10–2 Pa and only coarsening is induced at 10 Pa, environmental pressures of 300 and 750 Pa lead to the formation of typically sintered LATP electrolytes. Furthermore, the use of pressure as an additional parameter in sintering allows the grain size and shape of electrolyte particles to be controlled.
LB  - PUB:(DE-HGF)16
C6  - 36879774
UR  - <Go to ISI:>//WOS:000942872900001
DO  - DOI:10.1021/acs.cgd.2c01098
UR  - https://juser.fz-juelich.de/record/1006877
ER  -