Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-entropy rare earth silicate ceramic nano-powder as well as preparation method and application thereof
The invention discloses high-entropy rare earth silicate ceramic nano-powder as well as a preparation method and application thereof. The preparation method of the high-entropy rare earth silicate ceramic nano-powder comprises the following steps: 1) dissolving rare earth oxide powder in an acid solution to prepare a rare earth salt solution, then adding urea and silicon dioxide powder, and carrying out gelation reaction to obtain gel; 2) igniting the gel for combustion synthesis, and grinding to obtain precursor powder; and 3) calcining the precursor powder to obtain the high-entropy rare earth silicate ceramic nano-powder. The high-entropy rare earth silicate ceramic nano-powder has the excellent characteristics of small particle size, uniform element distribution, large component space, no impurity phase and the like, and the preparation method has the advantages of high synthesis speed, simple equipment, simple and controllable process, low industrialization cost and the like, and is suitable for being applied to hot-end parts of aerospace engines. And the method has a very wide application prospect.
本发明公开了高熵稀土硅酸盐陶瓷纳米粉体及其制备方法与应用。本发明的高熵稀土硅酸盐陶瓷纳米粉体的制备方法包括以下步骤：1)将稀土氧化物粉体溶解在酸溶液中制成稀土盐溶液，再加入尿素和二氧化硅粉体后进行凝胶化反应，得到凝胶；2)将凝胶引燃进行燃烧合成，研磨，得到前驱体粉体；3)将前驱体粉体进行煅烧，即得高熵稀土硅酸盐陶瓷纳米粉体。本发明的高熵稀土硅酸盐陶瓷纳米粉体具有粒径细小、元素分布均匀、组分空间大、不含杂质相等优异特性，且其制备方法具有合成速度快、设备简易、工艺简单可控、产业化成本低等优点，适合应用在航空航天发动机热端部件上，具有十分广阔的应用前景。
High-entropy rare earth silicate ceramic nano-powder as well as preparation method and application thereof
The invention discloses high-entropy rare earth silicate ceramic nano-powder as well as a preparation method and application thereof. The preparation method of the high-entropy rare earth silicate ceramic nano-powder comprises the following steps: 1) dissolving rare earth oxide powder in an acid solution to prepare a rare earth salt solution, then adding urea and silicon dioxide powder, and carrying out gelation reaction to obtain gel; 2) igniting the gel for combustion synthesis, and grinding to obtain precursor powder; and 3) calcining the precursor powder to obtain the high-entropy rare earth silicate ceramic nano-powder. The high-entropy rare earth silicate ceramic nano-powder has the excellent characteristics of small particle size, uniform element distribution, large component space, no impurity phase and the like, and the preparation method has the advantages of high synthesis speed, simple equipment, simple and controllable process, low industrialization cost and the like, and is suitable for being applied to hot-end parts of aerospace engines. And the method has a very wide application prospect.
本发明公开了高熵稀土硅酸盐陶瓷纳米粉体及其制备方法与应用。本发明的高熵稀土硅酸盐陶瓷纳米粉体的制备方法包括以下步骤：1)将稀土氧化物粉体溶解在酸溶液中制成稀土盐溶液，再加入尿素和二氧化硅粉体后进行凝胶化反应，得到凝胶；2)将凝胶引燃进行燃烧合成，研磨，得到前驱体粉体；3)将前驱体粉体进行煅烧，即得高熵稀土硅酸盐陶瓷纳米粉体。本发明的高熵稀土硅酸盐陶瓷纳米粉体具有粒径细小、元素分布均匀、组分空间大、不含杂质相等优异特性，且其制备方法具有合成速度快、设备简易、工艺简单可控、产业化成本低等优点，适合应用在航空航天发动机热端部件上，具有十分广阔的应用前景。
High-entropy rare earth silicate ceramic nano-powder as well as preparation method and application thereof
高熵稀土硅酸盐陶瓷纳米粉体及其制备方法与应用
CHU YANHUI (Autor:in) / ZHAO SHIXIN (Autor:in) / WEI PENG (Autor:in) / ZHUANG LEI (Autor:in)
10.05.2024
Patent
Elektronische Ressource
Chinesisch
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