Understanding grain boundary segregation – a route to developing new advanced engineering materials
This project will use advanced microscopy techniques, including transmission electron microscopy (TEM) and atom probe tomography (APT) to investigate the effect of grain boundary impurities on the miscrostructure and properties of nanocrystalline materials.
Grain boundaries are one of the most important factors that determine the properties of an alloy. This project will use new information about grain boundary composition and structure for the development of advanced engineering alloys with exceptional properties. New technologies now allow direct experimental observation of grain boundary composition with unprecedented accuracy and we have proven concepts for new analytical methods that will to allow us to directly determine both grain boundary composition and crystallographic structure at the atomic scale. The PhD student will utilize the unique combination of advanced microscopy methods available at the Australian Centre from Microscopy and Microanalysis in the study of:
- Grain refinement in titanium (Ti) and zirconium (Zr) alloys. This will aid with the development of stronger and tougher Ti and Zr alloys through new grain refinement practices.
- Grain size stability in nanocrystalline alloys. This information may be used to produce new nanocrystalline alloys with exceptional properties through grain boundary engineering.
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The opportunity ID for this research opportunity is: 1501
Other opportunities with Associate Professor Julie Cairney