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中文摘要：
采用固相法分别于1195,1210,1225,1240℃和1255℃下制备了不同掺镁量的Ba（1–x）MgxTiO3（x=0.03,0.06,0.09,0.12）陶瓷。借助X射线衍射和阻抗分析仪对其相结构和介电性能进行了测试。结果表明：随着Mg含量的增加,Ba（1–x）MgxTiO3陶瓷的立方相含量增加,四方相含量减小,介电常数减小,Curie温度降低,Curie峰明显展宽,出现明显的弥散现象。1225℃烧结的Ba0.97Mg0.03TiO3陶瓷的性能稳定,其介电常数和介电损耗分别为1600和0.002。
英文摘要：
Ba（1–x）MgxTiO3 （x = 0.03,0.06,0.09,0.12） ceramics were prepared by solid state synthesis at 1 195,1 210,1 225,1 240 and 1 255 ℃ ,respectively. The phase structures and dielectric properties were investigated by X-ray diffraction and impedance analyzer. The results indicate that with the increase of Mg content,the content of cubic phase of Ba（1–x）MgxTiO3 ceramics increases,but the content of tetragonal phase decreases. However,its dielectric constant and Curie temperature decrease,and its Curie peak broadens indicating a frequency dispersive. The Ba0.97Mg0.03TiO3 ceramic sintered at 1 225 ℃ has stable properties,with a dielectric constant of 1600 and a dielectric loss of 0.002.
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