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Layered perovskite structure high-entropy thermal barrier coating material with high fracture toughness and preparation method of layered perovskite structure high-entropy thermal barrier coating material
The invention discloses a layered perovskite structure high-entropy thermal barrier coating material with high fracture toughness and a preparation method of the layered perovskite structure high-entropy thermal barrier coating material. The invention relates to the technical field of thermal barrier coating materials. The chemical formula of the layered perovskite structure high-entropy thermal barrier coating material with high fracture toughness is BaLn2Ti3O10, and Ln is selected from at least three of La, Ce, Pr, Nd and Sm. The preparation method comprises the following steps: weighing the rare earth oxides, BaCO3 and nano TiO2 according to the chemical formula, mixing, carrying out wet ball milling, filtering, cleaning and drying the ball-milled mixture precursor, pre-sintering, and calcining to obtain the layered perovskite structure high-entropy thermal barrier coating material. High-entropy design is carried out by screening out rare earth ion size difference, quality difference and the like, a novel multi-principal-element doping system is provided, a phase generated after doping is very stable at high temperature, and meanwhile the fracture toughness of the layered perovskite structure is improved.
本发明公开了一种高断裂韧性的层状钙钛矿结构高熵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。本发明的一种高断裂韧性的层状钙钛矿结构高熵热障涂层材料，其化学式为BaLn2Ti3O10，Ln选自La、Ce、Pr、Nd、Sm中的至少三种。制备方法为按照化学式称取各稀土氧化物、BaCO3、纳米TiO2混合湿法球磨后，将球磨后的混合物前驱体过滤清洗干燥后先预烧再煅烧得层状钙钛矿结构高熵热障涂层材料。本发明通过筛选出稀土离子尺寸差和质量差等进行高熵设计，提出了一种新的多主元掺杂体系，掺杂后生成的物相在高温下也十分稳定，同时提高层状钙钛矿结构的断裂韧性。
Layered perovskite structure high-entropy thermal barrier coating material with high fracture toughness and preparation method of layered perovskite structure high-entropy thermal barrier coating material
The invention discloses a layered perovskite structure high-entropy thermal barrier coating material with high fracture toughness and a preparation method of the layered perovskite structure high-entropy thermal barrier coating material. The invention relates to the technical field of thermal barrier coating materials. The chemical formula of the layered perovskite structure high-entropy thermal barrier coating material with high fracture toughness is BaLn2Ti3O10, and Ln is selected from at least three of La, Ce, Pr, Nd and Sm. The preparation method comprises the following steps: weighing the rare earth oxides, BaCO3 and nano TiO2 according to the chemical formula, mixing, carrying out wet ball milling, filtering, cleaning and drying the ball-milled mixture precursor, pre-sintering, and calcining to obtain the layered perovskite structure high-entropy thermal barrier coating material. High-entropy design is carried out by screening out rare earth ion size difference, quality difference and the like, a novel multi-principal-element doping system is provided, a phase generated after doping is very stable at high temperature, and meanwhile the fracture toughness of the layered perovskite structure is improved.
本发明公开了一种高断裂韧性的层状钙钛矿结构高熵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。本发明的一种高断裂韧性的层状钙钛矿结构高熵热障涂层材料，其化学式为BaLn2Ti3O10，Ln选自La、Ce、Pr、Nd、Sm中的至少三种。制备方法为按照化学式称取各稀土氧化物、BaCO3、纳米TiO2混合湿法球磨后，将球磨后的混合物前驱体过滤清洗干燥后先预烧再煅烧得层状钙钛矿结构高熵热障涂层材料。本发明通过筛选出稀土离子尺寸差和质量差等进行高熵设计，提出了一种新的多主元掺杂体系，掺杂后生成的物相在高温下也十分稳定，同时提高层状钙钛矿结构的断裂韧性。
Layered perovskite structure high-entropy thermal barrier coating material with high fracture toughness and preparation method of layered perovskite structure high-entropy thermal barrier coating material
一种高断裂韧性的层状钙钛矿结构高熵热障涂层材料及其制备方法
YANG JING (author) / JIN HONGYUN (author) / HONG JIANHE (author) / LI KAIYUN (author) / ZHANG SHENG (author) / WEI BENBEN (author) / WANG XUAN (author) / YANG BO (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
Thermal barrier coating material with perovskite structure and preparation method thereof
| European Patent Office | 2023