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Non-equal-ratio doped Ce-containing rare earth zirconate thermal barrier coating material and preparation method thereof
The invention discloses an unequal-ratio doped Ce-containing rare earth zirconate thermal barrier coating material and a preparation method thereof. The invention relates to the technical field of thermal barrier coating materials. The chemical composition formula of the thermal barrier coating material disclosed by the invention is (Ce < 0.1 > Sc < 0.1 > Dy < 0.2 > Sm < 0.2 > Gd < 0.2 > Yb < 0.2 >) < 2 > Zr < 2 > O < 7 >. The preparation method comprises the following steps: S1, weighing a metal source to prepare a solution according to a chemical composition formula; s2, preparing a material by adopting a reverse coprecipitation method; and S3, the powder is pre-sintered and then sintered, and the thermal barrier coating material is obtained. According to atomic size difference calculation, a single-phase structure which is stable at high temperature is prepared under the condition that a single-phase solid solution is formed, and mechanical properties such as hardness, elasticity modulus, fracture toughness and brittleness are obviously improved under the condition that low heat conductivity and high thermal expansion performance are met at the same time; further, the Ce-containing rare earth zirconate thermal barrier coating material is promoted, and the practical application of the material in the field of thermal barrier coating materials is ensured.
本发明公开了一种非等比掺杂含Ce稀土锆酸盐热障涂层材料及其制备方法。本发明涉及热障涂层材料技术领域。本发明的热障涂层材料化学组成式为(Ce0.1Sc0.1Dy0.2Sm0.2Gd0.2Yb0.2)2Zr2O7。制备方法：S1，按照化学组成式称取金属源配置溶液；S2，采用反向共沉淀法制备物料；S3，将粉末预烧后再烧结得热障涂层材料。本发明根据原子尺寸差计算，在满足形成单相固溶体的条件下，制备出高温下结构稳定的单相结构，在低热导率和高热膨胀性能同时满足的条件下，硬度、弹性模量、断裂韧性和脆性等力学性能明显提高，进而推进含Ce稀土锆酸盐热障涂层材料保证材料在热障涂层材料领域实际应用。
Non-equal-ratio doped Ce-containing rare earth zirconate thermal barrier coating material and preparation method thereof
The invention discloses an unequal-ratio doped Ce-containing rare earth zirconate thermal barrier coating material and a preparation method thereof. The invention relates to the technical field of thermal barrier coating materials. The chemical composition formula of the thermal barrier coating material disclosed by the invention is (Ce < 0.1 > Sc < 0.1 > Dy < 0.2 > Sm < 0.2 > Gd < 0.2 > Yb < 0.2 >) < 2 > Zr < 2 > O < 7 >. The preparation method comprises the following steps: S1, weighing a metal source to prepare a solution according to a chemical composition formula; s2, preparing a material by adopting a reverse coprecipitation method; and S3, the powder is pre-sintered and then sintered, and the thermal barrier coating material is obtained. According to atomic size difference calculation, a single-phase structure which is stable at high temperature is prepared under the condition that a single-phase solid solution is formed, and mechanical properties such as hardness, elasticity modulus, fracture toughness and brittleness are obviously improved under the condition that low heat conductivity and high thermal expansion performance are met at the same time; further, the Ce-containing rare earth zirconate thermal barrier coating material is promoted, and the practical application of the material in the field of thermal barrier coating materials is ensured.
本发明公开了一种非等比掺杂含Ce稀土锆酸盐热障涂层材料及其制备方法。本发明涉及热障涂层材料技术领域。本发明的热障涂层材料化学组成式为(Ce0.1Sc0.1Dy0.2Sm0.2Gd0.2Yb0.2)2Zr2O7。制备方法：S1，按照化学组成式称取金属源配置溶液；S2，采用反向共沉淀法制备物料；S3，将粉末预烧后再烧结得热障涂层材料。本发明根据原子尺寸差计算，在满足形成单相固溶体的条件下，制备出高温下结构稳定的单相结构，在低热导率和高热膨胀性能同时满足的条件下，硬度、弹性模量、断裂韧性和脆性等力学性能明显提高，进而推进含Ce稀土锆酸盐热障涂层材料保证材料在热障涂层材料领域实际应用。
Non-equal-ratio doped Ce-containing rare earth zirconate thermal barrier coating material and preparation method thereof
一种非等比掺杂含Ce稀土锆酸盐热障涂层材料及其制备方法
LI KAIYUN (author) / JIN HONGYUN (author) / HONG JIANHE (author) / ZHANG SHENG (author) / YANG JING (author) / WEI BENBEN (author) / WANG XUAN (author) / YANG BO (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2021