A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and preparation method of anti-sintering high-entropy ceramic thermal barrier coating powder material
The invention discloses an anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and a preparation method of the anti-sintering high-entropy ceramic thermal barrier coating powder material. The powder material is formed by agglomeration of submicron/micron rare earth oxide original powder and has high sphericity, the particle size distribution is concentrated in the range of 5-50 microns, the grain growth rate is low under the superhigh temperature condition of 1500 DEG C, and the anti-sintering coefficient is Rsgt; the rare earth element material is composed of five rare earth elements of Y, La, Nd, Sm and Eu according to an equal molar ratio, and uniform element distribution is shown on the micron scale and the nanometer scale. The preparation method comprises two steps of solid phase sintering and spray granulation. The powder material has the advantages that the powder material is suitable for plasma spraying physical vapor deposition, has good anti-sintering performance under the superhigh temperature condition of 1500 DEG C, is simple in preparation process, and facilitates batch preparation and engineering application of the anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition.
本发明公开了一种等离子喷涂物理气相沉积用抗烧结高熵陶瓷热障涂层粉体材料及其制备方法。所述粉体材料由亚微米/微米级稀土氧化物原始粉体团聚形成，具有高球形度，粒径分布集中于5‑50μm范围内，在1500℃超高温条件下晶粒生长速率低，抗烧结系数Rs>0.5，由Y、La、Nd、Sm、Eu五种稀土元素以等摩尔比组成，在微米和纳米两个尺度上均呈现出均匀的元素分布。其制备方法包括固相烧结与喷雾造粒两个步骤。所述粉体材料的优点在于，适用于等离子喷涂物理气相沉积，在1500℃超高温条件下具有较好的抗烧结性能，制备工艺简单，有利于等离子喷涂物理气相沉积用抗烧结高熵陶瓷热障涂层粉体材料批量制备与工程应用。
Anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and preparation method of anti-sintering high-entropy ceramic thermal barrier coating powder material
The invention discloses an anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and a preparation method of the anti-sintering high-entropy ceramic thermal barrier coating powder material. The powder material is formed by agglomeration of submicron/micron rare earth oxide original powder and has high sphericity, the particle size distribution is concentrated in the range of 5-50 microns, the grain growth rate is low under the superhigh temperature condition of 1500 DEG C, and the anti-sintering coefficient is Rsgt; the rare earth element material is composed of five rare earth elements of Y, La, Nd, Sm and Eu according to an equal molar ratio, and uniform element distribution is shown on the micron scale and the nanometer scale. The preparation method comprises two steps of solid phase sintering and spray granulation. The powder material has the advantages that the powder material is suitable for plasma spraying physical vapor deposition, has good anti-sintering performance under the superhigh temperature condition of 1500 DEG C, is simple in preparation process, and facilitates batch preparation and engineering application of the anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition.
本发明公开了一种等离子喷涂物理气相沉积用抗烧结高熵陶瓷热障涂层粉体材料及其制备方法。所述粉体材料由亚微米/微米级稀土氧化物原始粉体团聚形成，具有高球形度，粒径分布集中于5‑50μm范围内，在1500℃超高温条件下晶粒生长速率低，抗烧结系数Rs>0.5，由Y、La、Nd、Sm、Eu五种稀土元素以等摩尔比组成，在微米和纳米两个尺度上均呈现出均匀的元素分布。其制备方法包括固相烧结与喷雾造粒两个步骤。所述粉体材料的优点在于，适用于等离子喷涂物理气相沉积，在1500℃超高温条件下具有较好的抗烧结性能，制备工艺简单，有利于等离子喷涂物理气相沉积用抗烧结高熵陶瓷热障涂层粉体材料批量制备与工程应用。
Anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and preparation method of anti-sintering high-entropy ceramic thermal barrier coating powder material
一种等离子喷涂物理气相沉积用抗烧结高熵陶瓷热障涂层粉体材料及其制备方法
LYU BOWEN (author) / MAO XIYE (author) / WANG CHAO (author) / TAN XI (author) / ZHANG XIAOFENG (author) / MAO JIE (author) / DENG CHUNMING (author) / DENG CHANGGUANG (author) / LIU MIN (author)
2023-12-15
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
Low-thermal-conductivity high-entropy ceramic thermal barrier coating material
| European Patent Office | 2022
| European Patent Office | 2024
| European Patent Office | 2022
High-emissivity and high-entropy ceramic powder material and coating preparation method
| European Patent Office | 2021