NiO/YSZ cermet microstructure have focused on
starting catalyst powder particle sizes [6], the ratio
between NiO and YSZ content [7,8], and processing
techniques including mechanical alloying through
milling [9–12]. Nonetheless, there remain challenges
to achieving an ideal anode structure, especially in the
area of controlling grain growth and densification of
the NiO component during high temperature sintering
(> 1000 ℃). In principle, such growth could be
controlled by tuning the physical (particle shape, size,
size distribution, and extent of agglomeration [13,14]),