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Gadolinium zirconate-based high-entropy ceramic thermal barrier coating powder as well as preparation method and application thereof
The invention discloses gadolinium zirconate-based high-entropy ceramic thermal barrier coating powder as well as a preparation method and application thereof, and relates to the technical field of thermal barrier coating materials. The powder comprises the following components in percentage by mole: 50-60% of O, 1-6% of Y, 15-20% of Zr, 1-6% of Sm, 1-6% of Eu, 1-6% of Gd and 1-6% of Yb. An existing gadolinium zirconate system is modified through high-entropy engineering, different from previous doping modification of a single element or two elements, multiple rare earth metal elements are selected as principal elements for solid solution according to performance requirements, and finally a multi-component single-phase solid solution material with uniformly distributed elements is obtained. The high-entropy ceramic powder with high sphericity, good fluidity and uniform particle size distribution is further prepared through a spray drying process, and the requirements for novel high-temperature thermal barrier coating materials and the requirements for a plasma spraying thermal barrier coating preparation process at present are met.
本发明公开了一种基于锆酸钆的高熵陶瓷热障涂层粉体及其制备方法和应用，涉及热障涂层材料技术领域。粉体按摩尔质量百分比计包括O：50～60％，Y：1～6％，Zr：15～20％，Sm：1～6％，Eu：1～6％，Gd：1～6％和Yb：1～6％。通过高熵工程对现有的锆酸钆体系进行改造，不同于以往单一或两种元素的掺杂改性，而是结合性能需求，选取多种稀土金属元素作为主元进行固溶，并最终得到一种元素分布均匀的多组分单相固溶体材料，进一步通过喷雾干燥工艺制备出球形度高、流动性好且粒度分布均匀的高熵陶瓷粉体，符合当前对新型高温热障涂层材料的需求及等离子喷涂热障涂层制备工艺要求。
Gadolinium zirconate-based high-entropy ceramic thermal barrier coating powder as well as preparation method and application thereof
The invention discloses gadolinium zirconate-based high-entropy ceramic thermal barrier coating powder as well as a preparation method and application thereof, and relates to the technical field of thermal barrier coating materials. The powder comprises the following components in percentage by mole: 50-60% of O, 1-6% of Y, 15-20% of Zr, 1-6% of Sm, 1-6% of Eu, 1-6% of Gd and 1-6% of Yb. An existing gadolinium zirconate system is modified through high-entropy engineering, different from previous doping modification of a single element or two elements, multiple rare earth metal elements are selected as principal elements for solid solution according to performance requirements, and finally a multi-component single-phase solid solution material with uniformly distributed elements is obtained. The high-entropy ceramic powder with high sphericity, good fluidity and uniform particle size distribution is further prepared through a spray drying process, and the requirements for novel high-temperature thermal barrier coating materials and the requirements for a plasma spraying thermal barrier coating preparation process at present are met.
本发明公开了一种基于锆酸钆的高熵陶瓷热障涂层粉体及其制备方法和应用，涉及热障涂层材料技术领域。粉体按摩尔质量百分比计包括O：50～60％，Y：1～6％，Zr：15～20％，Sm：1～6％，Eu：1～6％，Gd：1～6％和Yb：1～6％。通过高熵工程对现有的锆酸钆体系进行改造，不同于以往单一或两种元素的掺杂改性，而是结合性能需求，选取多种稀土金属元素作为主元进行固溶，并最终得到一种元素分布均匀的多组分单相固溶体材料，进一步通过喷雾干燥工艺制备出球形度高、流动性好且粒度分布均匀的高熵陶瓷粉体，符合当前对新型高温热障涂层材料的需求及等离子喷涂热障涂层制备工艺要求。
Gadolinium zirconate-based high-entropy ceramic thermal barrier coating powder as well as preparation method and application thereof
基于锆酸钆的高熵陶瓷热障涂层粉体及其制备方法和应用
LYU BOWEN (Autor:in) / MAO XIYE (Autor:in) / DAI HONGLIANG (Autor:in) / TAN XI (Autor:in) / WANG CHAO (Autor:in) / ZHANG XIAOFENG (Autor:in) / MAO JIE (Autor:in) / DENG CHUNMING (Autor:in) / DENG CHANGGUANG (Autor:in) / LIU MIN (Autor:in)
04.04.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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