Kyle Wade joins our research group! Welcome! Kyle is going to work on the wire-arc additive manufacturing, which is supported by US Army Research Laboratory. He is going to pursue the master degree (plan A).

Seok-Woo receives the DOE-BES fund ($400,000) for the next three years! Seok-Woo’s group will work on the effects of sample dimension on tensile ductility of single crystalline niobium, tantalum, and tungsten at cryogenic temperatures using in-situ cryogenic nano mechanical testing. This work will also use the advanced computer simulations of dislocations (Discrete Dislocation Dynamics and Molecular Dynamics) to understand how dislocations behave in a confined volume. This project will give us a new insight into fundamental understanding of tensile ductility at the micrometer scale!

Seok-Woo (co-PI) receives the collaborative fund with Profs. Mark Aindow (PI) and Avinash M. Dongare (Co-PI) from US Army Research Laboratory. These three groups will work together on Wire-Arc Additive Manufacturing (WAAM) with US ARL and VRC Metal Systems. Our group will investigate the micro-mechanical properties of WAAMed materials (Inconel and Steel). Additive manufacturing is one of the main research topics in Materials Science and Engineering, and it is wonderful for us to make a contribution to AM technologies!

Shuyang Xiao just passed his proposal defense! Many Congratulations!!! Let’s keep moving forward!

 

Seok-Woo receives the 2021 NASA CT Space Grant! This grant will be used for the development of cryogenic linear actuator using ThCr2Si2-structured intermetallic compounds. Heat-treated CaFe2As2 and SrNi2P2 will be used to study their cryogenic actuator capability, and a simple electrical circuit will be designed to perform the proof of concept test.

Shuyang’s research is highlighted in the MSE department webpage! Awesome!

MSE Graduate Gives Advice to Fellow International Students

 

Seok-Woo, Jessica, and Shuyang attended the TMS 2021 annual meeting (virtual)!

• Jessica Maita: “The Maximum Limit of Compressive Strength and Hardness of Nanocrystalline MgAl2O4 Spinel” (03/17, 3-3:20pm) – Session: 100 Years and Still Cracking: A Griffith Fracture Symposium
• Shuyang Xiao: “Ultrahigh fatigue-resistant superelasticity of SrNi₂P₂ via lattice collapse and expansion” (03/15, 4-4:20pm) – Session: Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
• Seok-Woo Lee: “Low Temperature Failure Mechanism of [001] Niobium Micropillars under Uniaxial Tension” (03/15, 2-2:20pm) – Session: Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling

Jessica receives the UConn Doctoral Dissertation Fellowship! Congratulations!

The information of the doctoral dissertation fellowship is available at the link below.

https://grad.uconn.edu/financing/fellowships/dissertation

Seok-Woo gave an invited presentation at (virtual) UKC 2020.

US-Korea Conference (UKC) 2020: 12/14~12/17, 2020 (virtual)

• Seok-Woo Lee: “Low Temperature Failure Mechanism of [001] Niobium Micropillars”  (invited oral presentation)

 

Shuyang gave an oral presentation at the (virtual) MRS Fall 2020! The title of his presentation was “Giant Compressive Superelastic Deformation of a [001]-Oriented SrNi₂P₂ Micropillar via Double Lattice Collapse and Expansion”. This presentation discussed his discovery of extremely large superelastic deformation, ~18%, in SrNi2P2. This exceptionally large elastic strain is produced by lattice collapse and expansion in 1x3x1 and 1x1x1 structures which co-exist. Great Job, Shuyang!