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Amorphous PZT gel network after drying in vacuum oven at .
(a) TEM image of the isolated small PZT precursor particle; inset is the corresponding SAED (b) Freestanding PZT perovskite nanoparticles after electron beam magnification; inset is the SAED of nanoparticles.
TEM image of PZT powder annealed at , showing the freestanding PZT nanoparticles in stable form; inset is the corresponding SAED of nanoparticles.
(a) XRD pattern of PZT gel powder calcined at for . (b) Same PZT powder annealed at for .
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