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The effect of Li2O-B2O3-SiO2(LBS)and BaO-ZnO-B2O3(BZB)additions on the sintering behavior,microstructure and microwave dielectric properties of tungsten bronze type Ba4Nd9.3Ti18O54(BNT)ceramics has been investigated.It was indicated that the LBS and BZB has an obvious effect on lowering the sintering temperature without damaging the microwave dielectric properties of the BNT ceramics.And BNT ceramics doped with 3 wt%LBS and 2wt%BZB can be well sintered at 875 ℃ for 3h and showed good properties of: εr=68.94, Q×f =4704GHz(f=4.2 GHz).