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Flaky perovskite structure high-entropy ceramic powder and preparation method thereof
The invention relates to flaky perovskite structure high-entropy ceramic powder and a preparation method thereof, material components are designed through a tolerance factor t, SrCO3, BaCO3, CaCO3, La2O3, PbO, Bi2O3 and TiO2 are used as raw materials, and a two-step molten salt method is adopted to prepare high-entropy flaky perovskite structure (Ca0. 25Sr0. 25Ba0. 25La0. 25TiO3) powder material and (Ca0. 25Sr0. 25Ba0. 25Pb0. 25TiO3) powder material. The prepared high-entropy flaky perovskite structure powder provides a template seed crystal for preparing high-entropy flaky perovskite texture ceramic by using a template grain growth technology. And meanwhile, due to the high-entropy effect and the special morphology under multi-component cooperation, unique electrical and thermal properties can be obtained. The raw materials are easy to obtain, the used medium is salt, and water is easy to dissolve and cannot bring difficulty to post-treatment or pollute the environment; in addition, the method has the characteristics that the process is simple, process parameters are easy to control and industrialization is easy, and the obtained powder is relatively good and stable in flaky morphology.
一种片状钙钛矿结构高熵陶瓷粉体及其制备方法，通过容差因子t设计材料组分，以SrCO3、BaCO3、CaCO3、La2O3、PbO、Bi2O3和TiO2为原料采用二步熔盐法制备高熵片状钙钛矿结构(Ca0.25Sr0.25Ba0.25La0.25)TiO3、(Ca0.25Sr0.25Ba0.25Pb0.25)TiO3粉体材料。所制备的高熵片状钙钛矿结构粉体为使用模板晶粒生长技术制备高熵片状钙钛矿织构陶瓷提供了模板籽晶。同时由于多组元协同下的“高熵效应”和特殊的形貌，能够获得独特的电学和热学性能。本发明原料易得，所用介质为盐，易溶水不会给后处理带来困难或污染环境；另外本发明具有工艺简单、工艺参数易控和易于产业化特点，得到的粉体片状形貌较好且稳定。
Flaky perovskite structure high-entropy ceramic powder and preparation method thereof
The invention relates to flaky perovskite structure high-entropy ceramic powder and a preparation method thereof, material components are designed through a tolerance factor t, SrCO3, BaCO3, CaCO3, La2O3, PbO, Bi2O3 and TiO2 are used as raw materials, and a two-step molten salt method is adopted to prepare high-entropy flaky perovskite structure (Ca0. 25Sr0. 25Ba0. 25La0. 25TiO3) powder material and (Ca0. 25Sr0. 25Ba0. 25Pb0. 25TiO3) powder material. The prepared high-entropy flaky perovskite structure powder provides a template seed crystal for preparing high-entropy flaky perovskite texture ceramic by using a template grain growth technology. And meanwhile, due to the high-entropy effect and the special morphology under multi-component cooperation, unique electrical and thermal properties can be obtained. The raw materials are easy to obtain, the used medium is salt, and water is easy to dissolve and cannot bring difficulty to post-treatment or pollute the environment; in addition, the method has the characteristics that the process is simple, process parameters are easy to control and industrialization is easy, and the obtained powder is relatively good and stable in flaky morphology.
一种片状钙钛矿结构高熵陶瓷粉体及其制备方法，通过容差因子t设计材料组分，以SrCO3、BaCO3、CaCO3、La2O3、PbO、Bi2O3和TiO2为原料采用二步熔盐法制备高熵片状钙钛矿结构(Ca0.25Sr0.25Ba0.25La0.25)TiO3、(Ca0.25Sr0.25Ba0.25Pb0.25)TiO3粉体材料。所制备的高熵片状钙钛矿结构粉体为使用模板晶粒生长技术制备高熵片状钙钛矿织构陶瓷提供了模板籽晶。同时由于多组元协同下的“高熵效应”和特殊的形貌，能够获得独特的电学和热学性能。本发明原料易得，所用介质为盐，易溶水不会给后处理带来困难或污染环境；另外本发明具有工艺简单、工艺参数易控和易于产业化特点，得到的粉体片状形貌较好且稳定。
Flaky perovskite structure high-entropy ceramic powder and preparation method thereof
一种片状钙钛矿结构高熵陶瓷粉体及其制备方法
GAO FENG (author) / WU ZHUOZHAO (author) / LOU ZHIHAO (author) / WEI ZIYAO (author) / LI DAIHENG (author) / ZHANG PING (author) / XU JIE (author)
2024-08-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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