Dr Nima Gorji
Postdoctoral Researcher

Dr Gorji received his BSc and MSc degrees in physics in 2008 and 2013; he received his PhD in Electronics from University of Bologna, Italy. He was awarded the Doctorate Student Honour Award by Intel, and was a visiting scholar to University of Toledo, Ohio, USA. His research concerns the physics of semiconductor devices, modeling and simulation especially of solar cells, sensors and photodetectors. He was a postdoctorate in materials sciences in Brown University, USA (2014), developing the physics of humidity sensors based on perovskite materials. In 2015, he received an IRC grant to join the X-ray metrology group in Dublin City University to develop the reliability of commercially packaged electronic devices including simulation analysis and synchrotron imaging. He received Erasmus+ teaching mobility to Ilia State University, Georgia, in 2017 and 2018.

Research Interests (Lay Summary)

Dr Gorji joined I-Form as a postdoctoral researcher in 2018. He is examining the recyclability of metallic powders for reuse in 3D printing machines. He has received a number of grants for research collaboration with the University of Nottingham (ECIU mobility grant) and Brunel University London (New Foundation grant by Irish Research Council). Powder recyclability can significantly reduce the cost, time, energy consumption and CO2 footprint of the additive manufacturing process and make it a greener and more cost-effective technology for industry.

 

Technical Summary

Dr Gorji is engaged with powder recyclability within 3D printing machines. He performs various characterisations to probe the chemical composition on surface and bulk of powders/parts, microstructure, morphology, and the structure of feedstock and recycled powders and the manufactured parts, as well as the mechanical properties measurements of the printed parts. He regularly performs XRD, XPS, SEM, EDX, XCT, AFM, Synchrotron XPS, and Nanoindentation. Currently focused on stainless steel and titanium metallic powders, he will later on extend his research to other materials. The final goal of his research is extending the reuse cycles of recycled powders for printing parts with high quality of surface and mechanical strengths.

Expertise

Additive Manufacturing (3D Printing), Advanced Manufacturing, Materials Structure-Property Analysis, Materials Characterisation, Metallurgy, Powder Characterisation, Reliability Analysis, Selective Laser Melting (SLM)

Publications