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Effect of sintering temperature on (K 0.465 Na 0.465 Li 0.07 )(Nb 0.95 Sb 0.05 )O 3 lead-free ceramics was systematically studied. The porosity inside the grains was observed, which acts as a pinning effect and leads to the increase of coercive field. Both high and low sintering temperatures (T s ) would lead to the formation of secondary phases,...
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