Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-entropy rare earth niobate ceramic coating material and preparation method thereof
The invention relates to a high-entropy rare earth niobate ceramic coating material and a preparation method thereof, and belongs to the technical field of high-entropy ceramic materials. The phase composition of the coating material is (La < 0.2 > Nd < 0.2 > Sm < 0.2 > Eu < 0.2 > Gd < 0.2 >) NbO4. The preparation method comprises the following steps: uniformly mixing raw material powder through wet ball milling to form slurry; and then drying, raising the temperature to 1200-1300 DEG C, and calcining for 600-800 minutes at a constant temperature, so as to obtain the coating material. The coating material is a single-phase solid solution formed by mixing and sintering five rare earth elements of La, Nd, Sm, Eu and Gd and an Nb element, and has high-temperature phase stability, good fracture toughness and relatively low thermal conductivity; the preparation method is a solid-phase reaction method, the process is simple and easy to operate and control, and the prepared product is high in purity.
本发明涉及一种高熵稀土铌酸盐陶瓷涂层材料及其制备方法，属于高熵陶瓷材料技术领域。所述涂层材料的物相组成为(La0.2Nd0.2Sm0.2Eu0.2Gd0.2)NbO4。所述制备方法通过将原料粉体湿法球磨混合均匀，形成浆料；然后干燥，再升温至1200℃～1300℃恒温煅烧600min～800min，制得所述涂层材料。所述涂层材料由La、Nd、Sm、Eu和Gd五种稀土元素与Nb元素混合烧结而成的单相固溶体，具有高温相稳定性、断裂韧性好以及较低的热导率；所述制备方法为固相反应法，工艺简单，易于操作、控制，所制备的产物纯度高。
High-entropy rare earth niobate ceramic coating material and preparation method thereof
The invention relates to a high-entropy rare earth niobate ceramic coating material and a preparation method thereof, and belongs to the technical field of high-entropy ceramic materials. The phase composition of the coating material is (La < 0.2 > Nd < 0.2 > Sm < 0.2 > Eu < 0.2 > Gd < 0.2 >) NbO4. The preparation method comprises the following steps: uniformly mixing raw material powder through wet ball milling to form slurry; and then drying, raising the temperature to 1200-1300 DEG C, and calcining for 600-800 minutes at a constant temperature, so as to obtain the coating material. The coating material is a single-phase solid solution formed by mixing and sintering five rare earth elements of La, Nd, Sm, Eu and Gd and an Nb element, and has high-temperature phase stability, good fracture toughness and relatively low thermal conductivity; the preparation method is a solid-phase reaction method, the process is simple and easy to operate and control, and the prepared product is high in purity.
本发明涉及一种高熵稀土铌酸盐陶瓷涂层材料及其制备方法，属于高熵陶瓷材料技术领域。所述涂层材料的物相组成为(La0.2Nd0.2Sm0.2Eu0.2Gd0.2)NbO4。所述制备方法通过将原料粉体湿法球磨混合均匀，形成浆料；然后干燥，再升温至1200℃～1300℃恒温煅烧600min～800min，制得所述涂层材料。所述涂层材料由La、Nd、Sm、Eu和Gd五种稀土元素与Nb元素混合烧结而成的单相固溶体，具有高温相稳定性、断裂韧性好以及较低的热导率；所述制备方法为固相反应法，工艺简单，易于操作、控制，所制备的产物纯度高。
High-entropy rare earth niobate ceramic coating material and preparation method thereof
一种高熵稀土铌酸盐陶瓷涂层材料及其制备方法
TIAN JINYU (Autor:in) / ZHU JINPENG (Autor:in) / YANG KAIJUN (Autor:in) / ZHANG YANING (Autor:in) / WANG HAILONG (Autor:in) / HE JILIN (Autor:in)
12.01.2024
Patent
Elektronische Ressource
Chinesisch
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