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| Preparation of Al-Ti-B Intermediate Alloy Powder by Sintering Method |
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Received:November 27, 2023
Revised:December 04, 2023
Accepted:December 12, 2023
Published Online:April 16, 2024
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| DOI：doi：10.3969/j.issn.1007-7545.2024.05.014 |
| KeyWord:Al-Ti-B intermediate alloy; Al3Ti phase; TiB2 phase; sintering method |
| Author | Institution |
| WANG Kai |
贵州师范大学 材料与建筑工程学院 |
| ZHANG Nianbing |
贵州师范大学 材料与建筑工程学院 |
| ZHEN Xiaofeng |
贵州师范大学 材料与建筑工程学院 |
| ZENG Linghe |
贵州师范大学 材料与建筑工程学院 |
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| Abstract: |
| Applying TiO2 powder, CaO powder, Al powder and B2O3 as raw materials, Al-Ti-B intermediate alloy powder was prepared by mixing, pressing and sintering. The physical phase composition, microscopic morphology and atomic valence states of the sintered products were analyzed by XRD, SEM-EDS and XPS characterization. The results show that the main phases of the sintered products are Al3Ti, TiB2, Al, CaAl4O7 and CaAl2O4 under the conditions including sintering temperature of 1 485 ℃, sintering time of 20 min, Ca/Al ratio of 1.6, and Ti/B ratio of 5. In the sintered products, Al3Ti and TiB2 are formed into blocky and small particles, which are uniformly distributed in the aluminum matrix. TiO2 has the phenomenon of step reduction in the reaction. Al-Ti-B intermediate alloy powder can be prepared by sintering method. |
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