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production of Nickel- Aluminide Nanocomposite Reinforced with Al2O3 Nanoparticles Via Mechanical Alloying Route and Field Activated Sintering Technique
, M.Sc. Thesis Sharif University of Technology ; Abachi, Parvin (Supervisor) ; Pourazarang, Kazem (Supervisor)
Abstract
Nickel aluminides are intermetalics with complex structures that have high metlting points. However, brittlement at room temperature and low high_temperature strength (above 700 ̊C) can be mentioned as their short comings. Nowadays, many efforts have been proceeded to produce theirs composites, so that one can benefit from ceramics and intermettalics properties simultaneously. In this project, the main was aim to produce NiAl matrix nanocomposite reinforced with Alumina Al2O3. The composite is processed using milling and mechanical alloying. This is a good way to produce intermetallics and their composites with high melting points without any need to supply high temperature during...