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Effect of 10Ce-TZP/Al2O3 nanocomposite particle amount and sintering temperature on the microstructure and mechanical properties of Al/(10Ce-TZP/Al2O3) nanocomposites
Highlights Increasing the 10Ce-TZP/Al2O3 content up to 7wt.%, enhanced composites’ hardness. Significant enhancement in compressive strength is obtained with 7% 10Ce-TZP/Al2O3. Sintering at 450°C, hardness and compressive strength are higher than at 400°C.
Abstract A zirconia/alumina nanocomposite stabilized with cerium oxide (Ce-TZP/Al2O3 nanocomposite) can be a good substitute as reinforcement in metal matrix composites. In the present study, the effect of the amount of 10Ce-TZP/Al2O3 particles on the microstructure and properties of Al/(10Ce-TZP/Al2O3) nanocomposites was investigated. For this purpose, aluminum powders with average size of 30μm were ball-milled with 10Ce-TZP/Al2O3 nanocomposite powders (synthesized by aqueous combustion) in varying amounts of 1, 3, 5, 7, and 10wt.%. Cylindrical-shape samples were prepared by pressing the powders at 600MPa for 60min while heating at 400–450°C. The specimens were then characterized by scanning and transmission electron microscopy (SEM and TEM) in addition to different physical and mechanical testing methods in order to establish the optimal processing conditions. The highest compression strength was obtained in the composite with 7wt.% (10Ce-TZP/Al2O3) sintered at 450°C.
Effect of 10Ce-TZP/Al2O3 nanocomposite particle amount and sintering temperature on the microstructure and mechanical properties of Al/(10Ce-TZP/Al2O3) nanocomposites
Highlights Increasing the 10Ce-TZP/Al2O3 content up to 7wt.%, enhanced composites’ hardness. Significant enhancement in compressive strength is obtained with 7% 10Ce-TZP/Al2O3. Sintering at 450°C, hardness and compressive strength are higher than at 400°C.
Abstract A zirconia/alumina nanocomposite stabilized with cerium oxide (Ce-TZP/Al2O3 nanocomposite) can be a good substitute as reinforcement in metal matrix composites. In the present study, the effect of the amount of 10Ce-TZP/Al2O3 particles on the microstructure and properties of Al/(10Ce-TZP/Al2O3) nanocomposites was investigated. For this purpose, aluminum powders with average size of 30μm were ball-milled with 10Ce-TZP/Al2O3 nanocomposite powders (synthesized by aqueous combustion) in varying amounts of 1, 3, 5, 7, and 10wt.%. Cylindrical-shape samples were prepared by pressing the powders at 600MPa for 60min while heating at 400–450°C. The specimens were then characterized by scanning and transmission electron microscopy (SEM and TEM) in addition to different physical and mechanical testing methods in order to establish the optimal processing conditions. The highest compression strength was obtained in the composite with 7wt.% (10Ce-TZP/Al2O3) sintered at 450°C.
Effect of 10Ce-TZP/Al2O3 nanocomposite particle amount and sintering temperature on the microstructure and mechanical properties of Al/(10Ce-TZP/Al2O3) nanocomposites
Soltani, N. (author) / Pech-Canul, M.I. (author) / Bahrami, A. (author)
2013-03-01
7 pages
Article (Journal)
Electronic Resource
English
Lasting modification effect and remelting modification stability of Al-10Ce master alloy on alpha-Al
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