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Defects and Interfaces: Their Role During Phase Transformations in Aluminium-Silver Alloys

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posted on 2018-06-29, 04:01 authored by ZEZHONG ZHANG
The story of metallurgy is a story of civilisation. Physical metallurgy concerns the fundamentals and applications of phase transformations: the process in which atoms arrange themselves from one structure to another. Al-Ag alloys have served as a textbook system for understanding the solid-state phase transformations. Using transmission electron microscopy and atomistic calculations, Zezhong found a new precipitate phase, zeta (AgAl), in this classical system. In-situ microscopy and electron tomography revealed phase transformations in time and space. Zezhong illustrated the importance of defects and interfaces, and how to use them to tailor the precipitation behaviour.


Campus location


Principal supervisor

Laure Bourgeois

Additional supervisor 1

Nikhil Medhekar

Year of Award


Department, School or Centre

Materials Science and Engineering


Doctor of Philosophy

Degree Type



Faculty of Engineering