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- Title
In-Situ Synthesis and Characterizations of a Novel Aluminum Bronze Composite Reinforced with Micro-Size Tungsten Particles.
- Authors
Cheng, Chu; Song, Zi-Wei; Song, Ke-Xing; Wang, Ling-Feng; Huang, Tao; Zhou, Yan-Jun; Liu, Hai-Tao; Li, Shao-Lin; Han, Chao; Dou, Zhi-He; Zhang, Ting-An
- Abstract
We present a methodology for preparing a novel aluminum bronze composite reinforced with micro-size tungsten particles through aluminothermic reduction. To synthesize the aluminum bronze composite ingot, the adiabatic temperature (Tad) and thermodynamic equilibrium of the Al–CuO–WO3 system were calculated. The aluminum bronze composites with different target W contents were synthesized and systematically characterized. The results indicate that it is feasible to synthesize aluminum bronze composites reinforced with micro-tungsten particles via aluminothermic reduction. However, temperatures higher than 2000 K were not conducive to the forward reduction reaction. The microstructure of the aluminum bronze composite primarily comprises a gray matrix, white spherical tungsten particles, and black inclusions. With the increasing ratio of WO3 in the raw materials, the average size of the tungsten particles in the aluminum bronze composite ingots increased from 0.59mm to 2.06 mm, and the tungsten particle size increasingly tended toward normal distribution. The Al content decreased from 9.20% to 4.90%, while the O and Ca content increased slightly. The number of oxide inclusions in the aluminum bronze composites increased slightly. The slag obtained after aluminothermic reduction was comprised of CaAl4O7, W17O47, and Cu2O.
- Subjects
ALUMINUM composites; ALUMINUM bronze; TUNGSTEN; ADIABATIC temperature; TUNGSTEN alloys; THERMODYNAMIC equilibrium; COPPER slag
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2022, Vol 74, Issue 11, p4146
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-022-05311-2