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发明公开
CN109133915A 一种高储能钛酸钡基介质材料及其制备方法 有权

一种高储能钛酸钡基介质材料及其制备方法
摘要：
本发明涉及一种高储能钛酸钡基介质材料及其制备方法：该材料的化学式为(1‑x)BaTiO3‑xBi(Mg1/2Zr1/2)O3，其中x=0.02~0.20，包括以下步骤：（1）以BaCO3、TiO2、Bi2O3、MgO、ZrO2为原料，根据化学式剂量比配料；（2）使用湿法球磨将原料球磨混合均匀，烘干，在马弗炉中预烧得到陶瓷粉体；（3）将预烧粉体球磨、烘干、造粒、压制成陶瓷生坯；（4）将生坯排胶、烧结得到陶瓷样品。该方法制备工艺简单，成本低，无铅无污染，所制备的储能介质陶瓷材料具有高放电储能密度0.31~1.45J/cm3和较高的击穿强度82~191kV/cm。
摘要（英）：

The invention relates to a high-energy-storage barium titanate dielectric material and a preparation method thereof. The high-energy-storage barium titanate dielectric material has a chemical formulaof (1-x)BaTiO3-xBi(Mg1/2Zr1/2)O3, wherein x=0.02-0.20. The preparation method includes the steps of (1) preparing BaCO3, TiO2, Bi2O3, MgO and ZrO2 according to chemical formula doses; (2) milling thematerials by wet ball milling, mixing well, drying the mixture, pre-sintering the mixture in a muffle furnace to obtain ceramic powder; (3) ball-milling the pre-sintered powder, drying, granulating, and pressing to obtain raw ceramic; (4) debinding the raw ceramic, and sintering to obtain a ceramic sample. The preparation method is simple, low in cost, and free of lead or pollution; the prepared material herein has high discharge storage intensity of 0.31-1.45 J/cm<3> and high breakdown strength of 82-191 kV/cm.

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