Effects of Mn Doping on Dielectric Properties of BSTN Ceramics
The effects of Mn doping on the phase composition and dielectric properties of (1-x)BaO·xSrO·0.7TiO2·0.3Nb2O5 (BSTN) composite ceramics was investigated. The results showed that the dielectric constants of 0.7BaO·0.3SrO·(0.7-z)TiO2·0.3Nb2O5·zMnO2 (BSTNM) composite ceramics basically decreases as the content of doped MnO2 increases at the same applied frequency, while tanδ decreases when value z≤0.01 but increases when value z>0.01. The phase transition temperature of tungsten bronze phase in BSTNM composite ceramics increases with the increase of value z.
Wei Pan and Jianghong Gong
X. Cheng and Z. H. Zhou, "Effects of Mn Doping on Dielectric Properties of BSTN Ceramics", Key Engineering Materials, Vols. 368-372, pp. 72-74, 2008