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!

Seok-Woo receives the Interdisciplinary Multi-Investigator Materials Proposal (IMMP, $20,000) award from the Institute of Materials Science, UConn.

The award will support his research project entitled “Cryogenic Nano-Electro-Magneto-Mechanical Measurement for Strain Engineering Study on Advanced Functional and Quantum materials”. In this project, Seok-Woo’s research group is going to measure the electrical and magnetic properties of high temperature superconductors under elastic deformation and to control their superconducting critical temperature as a function of strain. This innovation will be realized by merging two entirely different fields of science: nanomechanics and superconductivity. This project will be conducted with Dr. Ilya Sochnikov in Department of Physics.

John and Shuyang’s another Acta Materialia paper (superelastic CaFe2As2: Part II) is published! Congratulations!

This work was primarily done by Ian Bakst and Prof. Chris Weinberger at Colorado State University. John and Shuyang participated in this paper as an experimental contribution. Sriram (the former PhD student at UConn MSE) and Prof. Mark Aindow also contributed to this work by providing the TEM data.

Ian N. Bakst, John T. Sypek, Sriram Vijayan, Shuyang Xiao, Mark Aindow, Seok-Woo Lee, Christopher R. Weinberger ,”Uniaxial compression of CaFe2As2 single crystals: the effects of microstructure and temperature on superplasticity – Part II: Modeling” Acta Materialia, 203, 116462 (2021) [web][pdf]

Zhongyuan attended the NSF poster presentation competition at IMECE 2020 and receives the award for Best Data Analysis/Presentation! This award is given for a student who shows the excellence in data representation, professionalism in presentation, and research summary. Many congratulations!

His poster title is “Ultra-High Elastic Energy Storage in Metal-Oxide-Infiltrated Hybrid Polymer Nanocomposite“, which is supported by NSF-MoMS (Mechanics of Materials and Structures). This poster discusses how to develop a polymer nanocomposites that exhibit near-theoretical limit of elastic energy absorption capability.

 

John and Shuyang’s Acta Materialia paper is published. I deeply appreciate his hard work even after graduation! 🙂 I hope he makes a great career at Collins Aerospace!

John T. Sypek, Sriram Vijayan, Shuyang Xiao, Matthew J. Kramer, Paul C. Canfield,  Mark Aindow, Christopher R. Weinberger, Seok-Woo Lee, “Uniaxial compression of CaFe2As2 single crystals: the effects of microstructure and temperature on superplasticity – Part I: Experimental Observation” Acta Materialia, 203, 116464 (2020) [web][pdf]

(Note: Part II will also appear very soon at Acta Materialia!)

Jessica continues to receive her GE fellowship in Spring semester. Congratulations and Thank you so much for your excellent leadership for UConn Materials Science Communities!

Gyuho’s work on cryogenic micro-tensile test on [001] niobium is published at Journal of Materials Research! Congratulations!

This work is featured as invited paper. The detailed publication information is available below.

Gyuho Song, Nicole K. Aragon, Ill Ryu, Seok-Woo Lee, “Low Temperature Failure Mechanism of [001] Niobium Micropillars Revealed by in-situ Cryogenic Micro-Tensile Tests and Dislocation Dynamics Simulations,” Journal of Materials Research (Invited Paper) (2020) – in press [PDF] [web]

Zhongyuan received the NSF registration award for IMECE 2020 virtual meeting! This award supports student’s registration and participation in NSF poster competition (https://event.asme.org/IMECE/Program/NSF). Zhongyuan’s abstract now moved to the main competition stage. Finger-Crossed!

International Mechanical Engineering Congress and Exposition (IMECE) 2020: 11/16~11/19, 2020 (virtual)

• Zhongyuan Li: “Ultrahigh elastic strain energy storage in metal-oxide-infiltrated patterned hybrid polymer nanocomposites” (poster) – National Science Foundation Poster Competition

 

 

 

Shuyang and Seok-Woo attended the virtual SES2020 meeting! The following presentations were given.

Society of Engineering Science (SES) 2020: 09/29~10/01, 2020 (virtual)

• Shuyang Xiao: “Giant compressive superplastic deformation of a [001]-oriented SrNi2P2 micropillar via double lattice collapse and expansion” (poster)
• Seok-Woo Lee: “Ultrahigh elastic strain energy storage in metal-oxide-infiltrated patterned hybrid polymer nanocomposites” (poster)