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The Engineered Microstructures and Radiation Effects Laboratory (EMREL) at Stony Brook University explores the science of interface engineered alloys with particular emphasis on high-strength and radiation-tolerant nanomaterials for extreme environment applications.  Research couples novel processing techniques and in situ characterization tools with large-scale atomistic simulations in the design of hierarchically structured alloys with characteristic structural length scales spanning orders of magnitude from the nanometer to microscale regime.  Materials are synthesized through a variety of methods selected specifically to introduce key microstructural features for improved properties that include electroforming, sputter and pulsed laser deposition, additive spray deposition, and laser additive manufacturing techniques. The common theme among all material systems studied involves tailoring interfaces (e.g., grain and phase boundaries) across multiple length scales ranging from the atomic (solute segregation at grain boundaries) and nanoscale (chemical inhomogeneities in multiphase systems and interface network effects) to collective responses of tailored microstructures that ultimately govern thermal stability, mechanical behavior, and radiation tolerance.  Our research is supported by the National Science Foundation through the Division of Materials Research and the Civil, Mechanical and Manufacturing Innovation Division, the Department of Energy Office of Fusion Energy Sciences and Advanced Research Projects Agency-Energy (ARPA-E), and the Office of Naval Research.

Research Highlights

Professor Trelewicz discusses nanostructured metal alloys for fusion energy applications.  This work is supported by the Department of Energy Office of Fusion Energy Sciences.

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Recent Publications

Streit's article with Los Alamos National Laboratory on "In-situ Irradiation Tolerance Investigation of High Strength Ultrafine Tungsten-Titanium Carbide Alloy" published in Acta Materialia

Wenbo's article with Pacific Northwest National Laboratory on "Grain Boundary Segregation and Intermetallic Precipitation in Coarsening Resistant Nanocrystalline Aluminum Alloys" published in Acta Materialia

Bin's article "Design of Crystalline-Amorphous Nanolaminates Using Deformation Mechanism Maps" published in Acta Materialia

Streit's article "Softening due to Grain Boundary Cavity Formation and its Competition with Hardening in Helium Implanted Nanocrystalline Tungsten" published in Scientific Reports

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News Highlights

EMNL's collaboration with Prof. Bruce Koel at Princeton featured on the University's homepage link

Brookhaven National Laboratory highlights EMNL's work on designing new metal alloys using engineered nanostructures link

EMNL’s research on solute-stabilized nanostructured tungsten alloys featured in MRS Bulletin link

Prof. Trelewicz recieves DOE Early Career Award on "Enhancing the Performance of Plasma-facing Materials Through Solute Stabilized Nanostructured Tungsten Alloys"  link

Prof. Trelewicz receives NSF CAREER Award on “Interface Engineered Amorphous Alloys for Thermoplastic Forming of Ductile Bulk Metallic Glasses”  link

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