Abstract
ABSTRACT The effect of lithium salts (Li2CO3, LiNO3, LiF) addition on sintering temperature and electrical properties of 0.68Pb(Mg1/3Nb2/3)O3-0.32PbTiO3 ceramics were investigated. All the samples with lithium salt additions show a typical liquid phase sintering character. The samples with LiNO3 and LiF addition sintered at 1100°C have dense structure. The dielectric loss decreases for the samples with the Li2CO3 and LiNO3 addition, but increases for the samples with LiF addition. The sample with LiF addition sintered at 1150°C has good piezoelectric properties, which d 33 is 620pC/N and K p is 64%. All these may be attributed to the anionic (F−-O2−) substitution.
Published Version
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