【摘要】 研究了 Ｂｉ２ Ｏ３ ·３ Ｔｉ Ｏ２ 和 Ｐｂ Ｔｉ Ｏ３ 的加入量对 Ｓｒ Ｔｉ Ｏ３ 基高压陶瓷电容器材料性能的影响。实验的结果表明：最佳加入量的摩尔分数分别是 Ｂｉ２ Ｏ３ ·３ Ｔｉ Ｏ２ 为 ９％ ， Ｐｂ Ｔｉ Ｏ３ 为 １８％ 。在 １ ２５０ ℃的温度下烧结获得了性能为：εｒ ＝ ３ ２９５； Ｅｂ ＝ １０．２ ｋ Ｖ／ｍ ｍ ；ｔｇδ＝ ６×１０－ ４ ；Δ Ｃ／ Ｃ（－ ２５～＋ ８５ ℃）≤ ±１２％ ；绝缘电阻 Ｒ＝ ７．５×１０１ ２ Ω的高压陶瓷电容器材料。更多还原

【Abstract】 The effect of the additive Bi 2O 3·3TiO 2 and PbTiO 3 on the properties of SrTiO 3 based ceramics was studied.The result indicted that the optimal content of Bi 2O 3·3TiO 2 and PbTiO 3 is 9% and 18% respectively.Materials of high voltage capacitors sintered at 1 250 ℃ were obtained with properpties: ε r =3 295, E b =10.2 kV/mm,tg δ =6×10 -4 , Δ C/C (-25～+85 ℃)≤±12%,insulated resistance R =7.5×10 12 Ω.更多还原