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Properties and Mechanism of Al2O3- Al Composite Powder Prepared by Hydrothermal Method
- Source :
- Materials Science Forum; January 2023, Vol. 1080 Issue: 1 p27-32, 6p
- Publication Year :
- 2023
-
Abstract
- In order to improve the wear resistance of aluminum matrix composites and reduce the cost at the same time, the Al<subscript>2</subscript>O<subscript>3</subscript>/Al composite powder was prepared by hydrothermal method in this experiment, and the material properties of the Al<subscript>2</subscript>O<subscript>3</subscript>/Al metal matrix composite powder material were studied. It can be seen from the results that the encapsulation degree of Al<subscript>2</subscript>O<subscript>3</subscript>/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.
Details
- Language :
- English
- ISSN :
- 02555476 and 16629752
- Volume :
- 1080
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Materials Science Forum
- Publication Type :
- Periodical
- Accession number :
- ejs62324477
- Full Text :
- https://doi.org/10.4028/p-8j0s07