Pascal Bellon

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








Graduate students


Nirab Pant







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








Sara K. Wonner

I am a first year PhD student, and I joined the group in August 2020. My project involves studying the impact of mechanical stress factors, surface microstructure, and radiation damage on the corrosion response of 304L stainless steel subjected to two different pressurized water reactor water chemistry conditions. One condition utilizes LiOH as the alkalinizing agent, the traditional agent used in PWRs, and the other uses KOH. Acquiring a more developed understanding the corrosion response of stainless steel to KOH will better inform industry leaders should they choose to switch alkalinizing agents to improve PWR plant efficiency.



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

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