Properties and Mechanism of Al2O3- Al Composite Powder Prepared by Hydrothermal Method

Yu Zhen Wang; Zhi Qiang Shen; Jie Guang Song; Guang Yuan Yang; Meng Li Qin; Ci Wang; Yu Xiang Liu

doi:10.4028/p-8j0s07

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HomeMaterials Science ForumMaterials Science Forum Vol. 1080Properties and Mechanism of Al2O3- Al Composite...

Properties and Mechanism of Al₂O₃- Al Composite Powder Prepared by Hydrothermal Method

Abstract:

In order to improve the wear resistance of aluminum matrix composites and reduce the cost at the same time, the Al₂O₃/Al composite powder was prepared by hydrothermal method in this experiment, and the material properties of the Al₂O₃/Al metal matrix composite powder material were studied. It can be seen from the results that the encapsulation degree of Al₂O₃/Al-based composite powder material first increases and then decreases with the increase of ammonia concentration, and first increases and then decreases with the increase of PH value. The optimal molar ratio of salt and alkali is 1:1. Through the optimization of process parameters, the ratio of aluminum nitrate and ammonia water is obtained as: 1:1, the slurry stirring speed is 1500r/min, the stirring time is 10min, and the heating temperature is 200°C, the obtained composite powder is relatively uniform, has a larger specific surface area, and has better powder properties.

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Periodical:

Materials Science Forum (Volume 1080)

Pages:

27-32

DOI:

https://doi.org/10.4028/p-8j0s07

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Online since:

January 2023

Authors:

Yu Zhen Wang, Zhi Qiang Shen, Jie Guang Song*, Guang Yuan Yang, Meng Li Qin, Ci Wang, Yu Xiang Liu

Keywords:

Composite Powder, Hydrothermal Method, Powder Properties, Synthetic Mechanism

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