Abstract
A new sintering method, spark plasma sintering (SPS), is described for the sintering of fine-grained BaTiO3 ceramics. Dense ceramics with fine grain size of near 170 run are obtained using SPS at low temperature of 900°C without holding time. The dielectric measurements of various grain size specimens show that the dielectric constants decrease with the reduce of grain size, and diffuse phase transition showed in the dielectric-temperature spectra. The variation in dielectric properties with grain size is explained.
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