Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rare earth tantalate high-entropy ceramic material as well as preparation method and application thereof
The invention provides a rare earth tantalate high-entropy ceramic material as well as a preparation method and application thereof, and belongs to the technical field of high-temperature thermal protection ceramic materials. The chemical formula of the rare earth tantalate high-entropy ceramic material provided by the invention is RETa3O9, RE is a rare earth element, and the rare earth element comprises more than five of Y, La, Ce, Pr, Nd, Gd, Tb and Tm. More than five rare earth elements are simultaneously introduced into the tantalate, so that the lattice distortion degree of the tantalate can be adjusted, the phonon scattering of the tantalate can be enhanced, the rare earth tantalate high-entropy ceramic material has the characteristics of high phase stability and low thermal conductivity, and the rare earth tantalate high-entropy ceramic material has a wide application prospect in the field of thermal barrier coating materials.
本发明提供了一种稀土钽酸盐高熵陶瓷材料及其制备方法和应用，属于高温热防护陶瓷材料技术领域。本发明提供的稀土钽酸盐高熵陶瓷材料，化学式为RETa3O9，所述RE为稀土元素，所述稀土元素包括Y、La、Ce、Pr、Nd、Gd、Tb和Tm中的五种以上。本发明在钽酸盐中同时引入五种以上稀土元素，能够调节钽酸盐的晶格畸变程度，增强其声子散射，保证所述稀土钽酸盐高熵陶瓷材料具有相稳定性高且热导率低的特点，在热障涂层材料领域有广泛的应用前景。
Rare earth tantalate high-entropy ceramic material as well as preparation method and application thereof
The invention provides a rare earth tantalate high-entropy ceramic material as well as a preparation method and application thereof, and belongs to the technical field of high-temperature thermal protection ceramic materials. The chemical formula of the rare earth tantalate high-entropy ceramic material provided by the invention is RETa3O9, RE is a rare earth element, and the rare earth element comprises more than five of Y, La, Ce, Pr, Nd, Gd, Tb and Tm. More than five rare earth elements are simultaneously introduced into the tantalate, so that the lattice distortion degree of the tantalate can be adjusted, the phonon scattering of the tantalate can be enhanced, the rare earth tantalate high-entropy ceramic material has the characteristics of high phase stability and low thermal conductivity, and the rare earth tantalate high-entropy ceramic material has a wide application prospect in the field of thermal barrier coating materials.
本发明提供了一种稀土钽酸盐高熵陶瓷材料及其制备方法和应用，属于高温热防护陶瓷材料技术领域。本发明提供的稀土钽酸盐高熵陶瓷材料，化学式为RETa3O9，所述RE为稀土元素，所述稀土元素包括Y、La、Ce、Pr、Nd、Gd、Tb和Tm中的五种以上。本发明在钽酸盐中同时引入五种以上稀土元素，能够调节钽酸盐的晶格畸变程度，增强其声子散射，保证所述稀土钽酸盐高熵陶瓷材料具有相稳定性高且热导率低的特点，在热障涂层材料领域有广泛的应用前景。
Rare earth tantalate high-entropy ceramic material as well as preparation method and application thereof
一种稀土钽酸盐高熵陶瓷材料及其制备方法和应用
LIU LING (Autor:in) / MA ZHUANG (Autor:in) / LIU YANBO (Autor:in) / LIU HANWEN (Autor:in)
25.03.2022
Patent
Elektronische Ressource
Chinesisch
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