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Title: Development of Al93Fe3Cr2Ti2/ nano-size γ-Al2O3 nanocomposite by ball milling process
Author: Xu, Weiyue
ISNI:       0000 0004 6499 5377
Awarding Body: University of Oxford
Current Institution: University of Oxford
Date of Award: 2017
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The strength of conventional aluminium alloys decreases rapidly above 150°C, which limits their applications at elevated temperature. Rapid solidified (RS) nanoquasicrystalline Al93Fe3Cr2Ti2 (at.%) alloy has previously shown outstanding mechanical performance and microstructural stability at elevated temperatures (>300°C). In order to obtain an outstanding Al-based material with very high strength in a broad range of temperature, it is proposed to produce a nanocomposite consisting of nano-size ceramic particles homogenously distributed in a nanoquasicrystalline alloy matrix. The main challenges of processing nanoquasicrystalline nanocomposites in ball milling are to prevent the metastable quasicrystalline phase from decomposition and to avoid the agglomerations of nano-size γ-Al2O3.
Supervisor: Audebert, Fernando ; Galano, Marina Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available