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Sodium bismuth titanate-based ceramic material with high electrocaloric effect, preparation method, application and ceramic
The invention discloses a sodium bismuth titanate-based ceramic material with a high electrocaloric effect, the chemical formula of the sodium bismuth titanate-based ceramic material is (1-x) Na0.5Bio. 5Ti03-x (Na0. 21Bi0. 21Ba0. 21Sr0. 185Ca0. 185) - Ti03, and the value range of x is 0-0.3. The preparation method comprises the following steps: respectively synthesizing NBT ceramic powder and NBBSC ceramic powder, respectively pre-sintering the NBT ceramic powder and the NBBSC ceramic powder, proportioning and taking materials according to the chemical formula (1-x) Na0. 5Bi0. 5TiO3-x (Na0. 21Bi0. 21Ba0. 21Sr0. 185 Ca0. 185) TiO3 (x = 0-0.3), carrying out ball milling and drying, pre-sintering again, and carrying out secondary ball milling and drying. The ceramic material can be used for manufacturing refrigeration materials. The material is simple in preparation process, low in raw material price and low in manufacturing cost, can be used for a long time, does not need to be replaced, is easy to miniaturize and meets the current refrigeration requirement.
本发明公开了一种高电卡效应的钛酸铋钠基陶瓷材料，化学式为(1‑x)Na0.5Bi0.5TiO3‑x(Na0.21Bi0.21Ba0.21Sr0.185Ca0.185)‑TiO3，x的取值范围为0‑0.3。通过分别合成NBT和NBBSC陶瓷粉体并分别进行预烧，再按化学式(1‑x)Na0.5Bi0.5TiO3‑x(Na0.21Bi0.21Ba0.21Sr0.185Ca0.185)TiO3(x＝0‑0.3)配比取料，球磨烘干再次预烧后，经二次球磨烘干。本发明的陶瓷材料可用于制作制冷材料。本发明制备工艺简单，原料价格低廉，制作成本低，用于其制作的铁电制冷材料能够长期使用无需更换，易于小型微型化，满足当前制冷需求。
Sodium bismuth titanate-based ceramic material with high electrocaloric effect, preparation method, application and ceramic
The invention discloses a sodium bismuth titanate-based ceramic material with a high electrocaloric effect, the chemical formula of the sodium bismuth titanate-based ceramic material is (1-x) Na0.5Bio. 5Ti03-x (Na0. 21Bi0. 21Ba0. 21Sr0. 185Ca0. 185) - Ti03, and the value range of x is 0-0.3. The preparation method comprises the following steps: respectively synthesizing NBT ceramic powder and NBBSC ceramic powder, respectively pre-sintering the NBT ceramic powder and the NBBSC ceramic powder, proportioning and taking materials according to the chemical formula (1-x) Na0. 5Bi0. 5TiO3-x (Na0. 21Bi0. 21Ba0. 21Sr0. 185 Ca0. 185) TiO3 (x = 0-0.3), carrying out ball milling and drying, pre-sintering again, and carrying out secondary ball milling and drying. The ceramic material can be used for manufacturing refrigeration materials. The material is simple in preparation process, low in raw material price and low in manufacturing cost, can be used for a long time, does not need to be replaced, is easy to miniaturize and meets the current refrigeration requirement.
本发明公开了一种高电卡效应的钛酸铋钠基陶瓷材料，化学式为(1‑x)Na0.5Bi0.5TiO3‑x(Na0.21Bi0.21Ba0.21Sr0.185Ca0.185)‑TiO3，x的取值范围为0‑0.3。通过分别合成NBT和NBBSC陶瓷粉体并分别进行预烧，再按化学式(1‑x)Na0.5Bi0.5TiO3‑x(Na0.21Bi0.21Ba0.21Sr0.185Ca0.185)TiO3(x＝0‑0.3)配比取料，球磨烘干再次预烧后，经二次球磨烘干。本发明的陶瓷材料可用于制作制冷材料。本发明制备工艺简单，原料价格低廉，制作成本低，用于其制作的铁电制冷材料能够长期使用无需更换，易于小型微型化，满足当前制冷需求。
Sodium bismuth titanate-based ceramic material with high electrocaloric effect, preparation method, application and ceramic
一种高电卡效应的钛酸铋钠基陶瓷材料、制备方法、用途及陶瓷
PU YONGPING (author) / JIN GE (author) / ZHANG QIANWEN (author) / LI RUN (author) / DU XINYI (author)
2021-08-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015
Preparation method of electrocaloric ceramic material and electrocaloric ceramic material thereof
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