Structural and Dielectric Properties of Dy-doped( Ba, Sr, Ca) TiO3 Thick Films
Preparation and electrocatalytic activities of Pt-TiO2 nanotubes (Ba0.57Sr0.33Ca0.10)TiO3 powders, prepared by the sol-gel method, were doped MnCO3 as acceptor and Dy2O3 as donor. This powder was mixed with an organic vehicle and BSCT thick films were fabricated by the screen-printing techniques on alumina substrate. The structural and dielectric properties of BSCT thick films were investigated with variation of Dy2O3 amount. As a result of the differential thermal analysis (DTA), exothermic peak was observed at around 670℃ due to the formation of the polycrystalline perovskite phase. All the BSCT thick films showed the XRD patterns of a typical polycrystalline perovskite structure. The average grain size of BSCT thick films decreased with increasing amount of Dy2O3. The relative dielectric constant and dielectric loss of the BSCT thick film doped Dy2O3 0. 1mol％ were 4637.4 and 1.6％ at 1kHz, respectively.
ferroelectric dielectric constant thick film screen-printing
Hyun-Ji Noh Sung-Gap Lee Sang-Man Park Sang-Eun Yun
国际会议
第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)
杭州
英文
928-931
2007-05-16（万方平台首次上网日期，不代表论文的发表时间）