Small, donor-doped Ba1-xLaxTiO3 nanocrystals are successfully prepared for the first time. These nanocrystals are suitable precursors for small-grain Ba1-xLaxTiO3 ceramics with a sizeable positive temperature coefficient of resistivity (PTCR) that is comparable to that of traditional large-grain ceramics derived from solid-state routes.
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Brutchey et al. (2008) studied this question.
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