A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of Al2O3-(5RE0.2) 3Al5O12 eutectic in-situ composite high-entropy ceramic with micro-nano structure
The invention discloses a preparation method of Al2O3-(5RE < 0.2 >) 3Al5O12 eutectic in-situ composite high-entropy ceramic with a micro-nano structure, and belongs to the technical field of ceramic preparation. The method comprises the steps that (1) eutectic component Al2O3-(5RE0.2) 3Al5O12 ceramic powder is prepared, RE is a rare earth element and comprises Sc, Y and lanthanide, and (5RE0.2) 3 represents that initial ceramic powder contains five rare earth oxides with the same molar ratio and different types; and (2) the Al2O3-(5RE < 0.2 >) 3Al5O12 ceramic powder prepared in the step (1) is adopted as a raw material, the ceramic powder is subjected to cladding deposition layer by layer through laser cladding material increase, and the Al2O3-(5RE < 0.2 >) 3Al5O12 eutectic in-situ composite high-entropy ceramic is obtained. The eutectic in-situ composite high-entropy ceramic is prepared by combining high-adaptability raw materials with laser cladding additive materials, the preparation efficiency of a ceramic device is remarkably improved, and meanwhile the ceramic device with excellent comprehensive performance is prepared.
本发明公开了一种微纳米结构Al2O3‑(5RE0.2)3Al5O12共晶自生复合高熵陶瓷的制备方法，属于陶瓷制备技术领域。本发明包括：(1)制备共晶组分Al2O3‑(5RE0.2)3Al5O12陶瓷粉末，其中，RE为稀土元素，包括Sc、Y以及镧系元素，(5RE0.2)3表示初始陶瓷粉末中含有5种摩尔比相同，类别不同的稀土氧化物；(2)采用所述步骤(1)中制备得到的Al2O3‑(5RE0.2)3Al5O12陶瓷粉末作为原材料，通过激光熔覆增材，使陶瓷粉末逐层熔覆沉积，得到Al2O3‑(5RE0.2)3Al5O12共晶自生复合高熵陶瓷。本发明通过高适配性的原料结合激光熔覆增材制备共晶自生复合高熵陶瓷，显著提升陶瓷器件制备效率，同时制备得到综合性能优异的陶瓷器件。
Preparation method of Al2O3-(5RE0.2) 3Al5O12 eutectic in-situ composite high-entropy ceramic with micro-nano structure
The invention discloses a preparation method of Al2O3-(5RE < 0.2 >) 3Al5O12 eutectic in-situ composite high-entropy ceramic with a micro-nano structure, and belongs to the technical field of ceramic preparation. The method comprises the steps that (1) eutectic component Al2O3-(5RE0.2) 3Al5O12 ceramic powder is prepared, RE is a rare earth element and comprises Sc, Y and lanthanide, and (5RE0.2) 3 represents that initial ceramic powder contains five rare earth oxides with the same molar ratio and different types; and (2) the Al2O3-(5RE < 0.2 >) 3Al5O12 ceramic powder prepared in the step (1) is adopted as a raw material, the ceramic powder is subjected to cladding deposition layer by layer through laser cladding material increase, and the Al2O3-(5RE < 0.2 >) 3Al5O12 eutectic in-situ composite high-entropy ceramic is obtained. The eutectic in-situ composite high-entropy ceramic is prepared by combining high-adaptability raw materials with laser cladding additive materials, the preparation efficiency of a ceramic device is remarkably improved, and meanwhile the ceramic device with excellent comprehensive performance is prepared.
本发明公开了一种微纳米结构Al2O3‑(5RE0.2)3Al5O12共晶自生复合高熵陶瓷的制备方法，属于陶瓷制备技术领域。本发明包括：(1)制备共晶组分Al2O3‑(5RE0.2)3Al5O12陶瓷粉末，其中，RE为稀土元素，包括Sc、Y以及镧系元素，(5RE0.2)3表示初始陶瓷粉末中含有5种摩尔比相同，类别不同的稀土氧化物；(2)采用所述步骤(1)中制备得到的Al2O3‑(5RE0.2)3Al5O12陶瓷粉末作为原材料，通过激光熔覆增材，使陶瓷粉末逐层熔覆沉积，得到Al2O3‑(5RE0.2)3Al5O12共晶自生复合高熵陶瓷。本发明通过高适配性的原料结合激光熔覆增材制备共晶自生复合高熵陶瓷，显著提升陶瓷器件制备效率，同时制备得到综合性能优异的陶瓷器件。
Preparation method of Al2O3-(5RE0.2) 3Al5O12 eutectic in-situ composite high-entropy ceramic with micro-nano structure
一种微纳米结构Al2O3-(5RE0.2)3Al5O12共晶自生复合高熵陶瓷的制备方法
LIU HAIFANG (author) / KUAI PENG (author) / SUI YUDONG (author) / FENG JING (author) / LIU HONGXI (author) / JIANG YEHUA (author)
2024-09-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Green preparation method of (Lu/Gd/Y) 3Al5O12 fluorescent ceramic
| European Patent Office | 2021
Preparation method for B4C-HfB2 high-temperature eutectic in-situ composite ceramic
| European Patent Office | 2015
High-entropy eutectic ceramic and preparation method and application thereof
| European Patent Office | 2024
Preparation method of composite ZrO2-Al2O3 ceramic micro-filtration membrane
| European Patent Office | 2015
High-fluidity oxide eutectic high-entropy ceramic powder and preparation method thereof
| European Patent Office | 2024