Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-entropy rare earth hafnate ceramic coating material and preparation method thereof
The invention relates to a high-entropy rare earth hafnate ceramic coating material and a preparation method thereof, and belongs to the technical field of high-entropy materials. The phase composition of the coating material is (Y < 0.2 > Yb < 0.2 > Ho < 0.2 > Er < 0.2 > Tm < 0.2 >) < 2 > Hf < 2 > O < 7 >, and the coating material is of a single-phase defect fluorite structure; raw material powder is fully and evenly mixed through wet ball milling, then the raw material powder mixture is alloyed through a solid-phase sintering technology, the single-phase coating material is prepared, high-entropy rare earth hafnate ceramic elements are evenly distributed, the thermal physical performance is excellent, the high-temperature phase is stable, and the coating material has the low heat conductivity and the high thermal expansion coefficient; and the coating has a wide application scene in the field of key high-end equipment thermal protection coatings.
本发明涉及一种高熵稀土铪酸盐陶瓷涂层材料及其制备方法，属于高熵材料技术领域。所述涂层材料的物相组成为(Y0.2Yb0.2Ho0.2Er0.2Tm0.2)2Hf2O7，为单一相缺陷萤石结构；通过湿法球磨使得原料粉末充分均匀混合，再采用固相烧结工艺将原料粉体混合物进行合金化，制备得到单一相的所述涂层材料，其中高熵稀土铪酸盐陶瓷元素分布均匀，热物理性能优异，高温相稳定，具有低热导率和高热膨胀系数，在关键高端装备热防护涂层领域具有广泛的应用场景。
High-entropy rare earth hafnate ceramic coating material and preparation method thereof
The invention relates to a high-entropy rare earth hafnate ceramic coating material and a preparation method thereof, and belongs to the technical field of high-entropy materials. The phase composition of the coating material is (Y < 0.2 > Yb < 0.2 > Ho < 0.2 > Er < 0.2 > Tm < 0.2 >) < 2 > Hf < 2 > O < 7 >, and the coating material is of a single-phase defect fluorite structure; raw material powder is fully and evenly mixed through wet ball milling, then the raw material powder mixture is alloyed through a solid-phase sintering technology, the single-phase coating material is prepared, high-entropy rare earth hafnate ceramic elements are evenly distributed, the thermal physical performance is excellent, the high-temperature phase is stable, and the coating material has the low heat conductivity and the high thermal expansion coefficient; and the coating has a wide application scene in the field of key high-end equipment thermal protection coatings.
本发明涉及一种高熵稀土铪酸盐陶瓷涂层材料及其制备方法，属于高熵材料技术领域。所述涂层材料的物相组成为(Y0.2Yb0.2Ho0.2Er0.2Tm0.2)2Hf2O7，为单一相缺陷萤石结构；通过湿法球磨使得原料粉末充分均匀混合，再采用固相烧结工艺将原料粉体混合物进行合金化，制备得到单一相的所述涂层材料，其中高熵稀土铪酸盐陶瓷元素分布均匀，热物理性能优异，高温相稳定，具有低热导率和高热膨胀系数，在关键高端装备热防护涂层领域具有广泛的应用场景。
High-entropy rare earth hafnate ceramic coating material and preparation method thereof
一种高熵稀土铪酸盐陶瓷涂层材料及其制备方法
ZHU JINPENG (Autor:in) / ZHANG SONGTAO (Autor:in) / LEE MOON-IL (Autor:in) / LI MINGLIANG (Autor:in) / YANG KAIJUN (Autor:in) / WANG HAILONG (Autor:in) / HE JILIN (Autor:in)
28.05.2024
Patent
Elektronische Ressource
Chinesisch
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