Synthesis of an Al-Based Composite Reinforced by Multi-Phase ZrB2, Al3BC and Al2O3 with Good Mechanical and Thermal Properties at Elevated Temperature
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To synthesize Al composite with high strength at elevated temperature, high modulus and thermal stability, ZrB2, Al3BC and Al2O3 particles have been chosen as reinforcements simultaneously. A (9.2 wt.% ZrB2 + 5.6 wt.% Al3BC + 5.5 wt.% Al2O3)/Al composite has been prepared, and the in-situ synthesized particles are nano-sized. Mechanical property tests reveal that the nanoparticles exhibit a remarkable synergistic enhancement effect. The elasticity modulus of the composite is 89 GPa, and the ultimate tensile strengths at 25 °C and 350 °C can be as high as 371 MPa and 154 MPa, respectively.
2020 ◽
Vol 775
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pp. 138983
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2017 ◽
Vol 690
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pp. 294-302
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2004 ◽
Vol 19
(9)
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pp. 2557-2566
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1986 ◽
Vol 44
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pp. 500-501
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