Pascal Bellon

Donald W. Hamer Professor of Materials Science and Engineering
Materials Science and Engineering Building, 312d
(217) 265-0284

Short Biography: After earning a PhD in Materials Science from University of Paris 6, France, Bellon worked during 7 years at CEA-Saclay, France, before joining the Department of Materials Science and Engineering at the University of Illinois at Urbana-Champaign as a tenure-track Assistant Professor in 1996, where he was later promoted to the rank of Associate Professor in 2002 and Full Professor in 2009. He received an NSF career award in 1998 and awards from the Academy for Excellence in Engineering Education from the University of Illinois in 1998, 1999 and 2000. He received the Don Burnett teaching award in 2000, the Accenture Engineering council award for Excellence in Advising in 2007 and the Stanley Pierce award in 2009. He was named a Racheff faculty scholar in 2012, and was inducted as the Donald W. Hamer Professor in Materials Science and Engineering at Illinois in 2016. Prof. Bellon served as interim head for the Department of Materials Science and Engineering at Illinois during 2019. His research focuses on materials driven into non-equilibrium states by external forcing such as irradiation by energetic particles and plastic deformation, in particular during powder processing and in tribological contacts, and on investigating how these driven systems can self-organize at the nanoscale and self-adapt to improve their performances in service.







Graduate students

Craig Daniels








Qun Li

My research focuses on self-organization of alloys subjected to severe external forces by both numerical simulation and experiment. My primary work, using phase-field modeling, is to study compositional patterning in irradiated binary alloys, specifically the kinetic evolution and steady-states of patterning, the coupling with defects such as grain boundaries. My early experimental work investigates the microstructural evolution of nanocomposite Cu-Nb-oxide precipitate during reactive ball-milling. In this work, phase characterization is performed by FIB, (S)TEM, EDS, EELS, etc. With a better understanding of alloys in far-from-equilibrium conditions, the development of new materials will be able to advance more by design.



Soumyajit Jana








Sourav Das

I am a third-year graduate student pursuing Ph.D. in Materials Science and Engineering. My research heavily focuses on experimental techniques to study and understand phase and microstructure evolution of alloys subjected to driven conditions such as radiation. Using state-of-the-art nano-characterization facilities such as FIB-SEM, S-TEM, APT at the central research facilities of the MRL, I am currently studying irradiation effects on Al-based binary alloys, specifically focusing on the compositional pattering regime. Previously, during the pandemic I have also worked on some computational projects using molecular dynamics(MD) to investigate the non-equilibrium thermodynamics of driven systems and electron beam-based irradiation effects during in-situ mechanical testing of nanomaterials.

Sara K. Wonner

My current research is on the effects of radiation on 316L Stainless Steel, a structural material common to nuclear reactors. My project involves both computational and experimental aspects, and primarily pertains to studying radiation induced segregation (RIS) at both grain boundaries and dislocations. Experimentally, I utilize techniques such as FIB, EBSD, (S)TEM, and EDS to characterize my material’s microstructure and study RIS. Computationally, I conduct phase field modeling to simulate the evolution of point defects over time, at different temperature and irradiation conditions, with the overarching goal to model RIS.

Kenyi Choy Hernandez

I joined the group in August 2021 as a first year PhD student. My present research focus entails developing a new class of Aluminum alloys suitable for additive manufacturing (AM). Aluminum has historically been difficult to manufacture using AM, and the few alloys that have been successfully developed are characterized by weaker mechanical properties. I will consider in this work new alloys and combinations, such as Al-(Fe,Ni,Cr) and Al-Sc, fabricated using selective laser melting, and subsequently characterized by complementary techniques including scanning and transmission electron microscopy, focused ion beam and atom probe tomography. As well, computational tools such as phase field modeling will be utilized to model solidification behavior and solid-phase transformations so as to guide the choice of the processing parameters. It is expected that an experimental and computational approach will help in optimizing the potential of AM.


Post-doctoral researchers

Gabriel-Frank Bouobda-Moladje

After obtaining my PhD at the University of Lille (France) in January 2020, I joined the group in August 2020 as a post-doctoral researcher. My thesis works were focused on phase-field (PF) modeling of irradiation damage, especially the computation of sink (dislocation, grain boundary, …) strengths  including all elastic interactions as elasto-diffusion, and the prediction of the radiation induced segregation (RIS) phenomenon in binary alloys near dislocations while these last are moving through the climb mechanism. Irradiation-induced compositional patterning (CP) which means self-organization in the precipitate length scale is another common observed phenomenon in irradiated materials and is intensively studied in the group since several years. Starting from my knowledge about modeling microstructural defects, their interactions with point defects (PDs) and the coupling between PD and atom fluxes, my current research aim to study the establishment of CP, its coupling with PD sinks and PDs including the RIS phenomenon, in selected binary model alloys using PF approach.

Former members of the Averback-Bellon groups

Post-doctoral researchers

Nisha Verma, 2016-2019

Thomas Schuler, 2015-2016

Madhavan Radhakrishnan, 2015-2018

Thomas Garnier, 2013-2014

Daniel Schwen, 2007-2011

Brad Stumphy, 2013-2014

Jian Zhou, 2012-2014

Fuzeng Ren, 2011-2014

Arnoldo Badillo, 2005-2008

Jung Bahadur Singh, 2005-2007

Prajina Bhattacharya,  2000-2003

Jean-Marc Roussel, 1998-2000

Slim Zghal, 1998-2000

David LeFloc’h, 1997-1998

Graduate Students

Craig Daniels, PhD 2021
Improving radiation resistance of solid solutions by addition of defect trapping solutes: Atomistic simulations and continuum modeling

Qun Li, PhD 2021
A phase field study of compositional patterning in irradiated binary immiscible alloys

Nirab Pant, PhD 2020
Atomistic simulations of driven alloys: A study of effective temperature models for low and high temperature applications

Sung Eun Kim, PhD 2019
Mechanical properties and influences of irradiation in dilute nanograined aluminum alloys

John Beach, PhD 2018
Self-organization in immiscible alloy systems under irradiation and severe plastic deformation

Calvin Lear, PhD 2016
Disorder and nanopatterning in ordered binary alloys: in situ ion irradiation and kinetic Monte Carlo simulation

Jaeyel Lee, PhD 2016
Irradiation-induced nanoclusters and their evolution in compound forming ni-base and cu-base alloys

Jonathan Hestroffer, MS 2016
Sintering behavior of Ag-Sn alloys prepared via cryogenic high-energy ball milling

Tim Lach, PhD 2016
Role of interfaces on severe plastic deformation and He-irradiation tolerance in Cu-Nb nanocomposites

Elvan Ekiz, PhD 2015
Microstructural evolution and phase stability of Cu/Nb nanolaminates subjected to severe plastic deformation by high pressure torsion

Shimin Mao, PhD 2015
Investigating the sink efficiencies of interfaces under irradiation

Miao Wang, PhD 2015
Severe plastic deformation in highly immiscible copper alloys: self-organization

Shipeng Shu, PhD 2015
Novel precipitate structures in alloys under irradiation

Xuan Zhang, PhD 2015
Nanoscale self-organization in irradiated ternary alloys

Salman Arshad, PhD 2014
Shear induced mixing and self-organization in immiscible alloys during severe plastic deformation

Brad Stumphy, PhD 2013
Self-organization of Cu-based immiscible alloys under irradiation: an atom-probe tomography study

Nhon Q. Vo, PhD 2012
Nanostructured alloys for extreme conditions

Rannesh Lokesh, MS 2011
Nanostructuring of Cu-TiB2 induced by ion irradiation

Wenjun Cai, PhD 2011
Dry sliding wear of metals: From subsurface microstructure to tribological behavior

Yang (Albert) Liu, MS 2008

Abhishek Chatterjee, PhD 2008
Tribological Behavior of Cvd-Grown Hafnium Diboride Thin Films From Macro to Nano-Length Scales

See Wee Chee, PhD 2008
Self-Organization of Dilute Copper Binary Alloys Under Ion Irradiations

Samson Odunuga, PhD 2007
Molecular Dynamics Study of Microstructural Evolution in Alloys Subjected to Severe Plastic Deformation

Charles Matthew Enloe, MS 2007

Jia Ye, PhD 2006
Nanoscale Patterning of Chemical Order Introduced by Displacement Cascades in Irradiated Alloys

Jessica Weninger, MS 2005

Wu Fang, PhD 2002
Nanostructured Copper-Silver Alloys Synthesized by High Energy Ball Milling

Raúl Enrique, PhD 2001
Phase and Microstructural Stability in Immiscible Binary Alloys Under Irradiation

Undergraduate students

Aaron Dahlke, 2011

Clare Mahoney, 2009-2011

Courtney Skinner, 2007-2008

Viralyn Ven, 2006-2007

Colleen Lyons, 2006

Justin Canniff, 2006

Jason Bares, 2005

Alicia Kuhl, 2005

David Narbutas, 2005

Timothy Tyler, 2003

Jeremy D. Hahn, 2002-2004

Jason Turek, 1998