【 中文摘要 】本发明公开了一种高储能性的稀土掺杂钨青铜结构陶瓷材料，其结构式为(Sr0.53‑0.15xBa0.47Gdx)1‑yREyNb2O6，x的取值为0～0.1，y的取值为0.01～0.08。本发明还公开了其制备方法，将BaCO3、SrCO3、Gd2O3、RE2O3、Nb2O5混合球磨，干燥，预烧，将预烧粉经造粒、压片、排胶后烧结，即可。通过A位稀土掺杂陶瓷体系抑制了钨青铜结构陶瓷非等轴晶粒的异常长大，形成了致密的铁电储能材料，增加了弛豫特性，减少了电场下的能量耗散，另外，该陶瓷组成中不涉及高温烧结过程中易于挥发的Bi、Na、K等元素，易于器件的集成化，对设备、人力和场地要求低。

【 英文摘要 】The invention discloses a rare earth doped tungsten bronze structural ceramic material with high energy storage property. The structural formula of the rare earth doped tungsten bronze structural ceramic material is (Sr0.53-0.15 xBa0. 47Gdx) 1-yREyNb2O6, wherein x is 0-0.1, and y is 0.01-0.08. The invention also discloses a preparation method of the composite material. The preparation method comprises the following steps of : mixing BaCO3, SrCO3, Gd2O3, RE2O3 and Nb2O5, ball-milling, drying, pre-sintering, granulating the pre-sintered powder, tabletting, removing glue and sintering to obtain the composite material. The A-site rare earth doped ceramic system can inhibit the abnormal growth of non-equiaxed crystal grains of tungsten bronze structure ceramic, A compact ferroelectric energy storage material is formed, the relaxation characteristic is improved, and the energy dissipation under an electric field is reduced; in addition, elements such as Bi, Na, K and the like which are easy to volatilize in the high-temperature sintering process are not involved in the ceramic composition, so that the integration of devices is facilitated, and the requirements on equipment, manpower and sites are low.

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