Our most recent paper was recently published in Chemistry of Materials. Students Pralav Shetty and Runyu Zhang (Braun group) collaborated to develop scalable, economic and thermally stable inverse opal structures through aluminization of electrodeposited Ni. This work is closely related to our efforts to modify the surface chemistry of structural alloys in the oil and gas industry to mitigate carbonaceous deposits.
Pack Aluminization Assisted Enhancement of Thermo-mechanical Properties in Nickel Inverse Opal Structures: DOI: 10.1021/acs.chemmater.7b04988.
Read more about our NSF Ceramics CAREER award in the most recent issue of the American Ceramics Society Ceramic Bulletin . Our CAREER award focuses on enhancing toughness in electroceramics through an intrinsic twinning mechanism.
A new paper from Prof. Krogstad and co-authors at Johns Hopkins University was published today in Acta Materialia: https://doi.org/10.1016/j.actamat.2017.10.065. This work complements another recent paper in Science Advances.
We are excited to welcome the incoming MatSE graduate class! Students interested in the SMEE research team, particularly our work on carbonaceous build up on structural alloys or metallic thin films, are encouraged to contact Prof. Krogstad.
In a recent publication, authors Gidong Sim (JHU) and Prof. Jessica Krogstad reported a novel metallic alloy that could be a game changer for next generation microelectromechanical systems (MEMS) based on its exceptional strength and thermal stability. The high density of nanotwins lead to unique interactions between dislocations and other strengthening mechanisms (grain boundary strengthening, solution strengthening, etc). For more about this research, you can find a number of press releases:
Ceramic Tech Today: “Stronger, more conductive alloy could replace silicon in MEMS”
Electronics 360 (IEEE): “Super-strength materials for the Internet of Things”
AZO Materials: “New metal alloy could be the solution to demands of futuristic technologies”
Science Daily: “Super-strong metal made for next tech frontier”
Materials Today: “New nickel alloy offers strong alternative to silicon in sensors”
Or download the original article:
Sim, G. D., Krogstad, J. A., Reddy, K. M., Xie, K. Y., Valentino, G. M., Weihs, T. P., & Hemker, K. J. (2017). Nanotwinned metal MEMS films with unprecedented strength and stability. Science Advances, 3(6), e1700685. DOI: 10.1126/sciadv.1700685
Are you at MRS this week? Stop by and see Prof. Krogstad talk about nanotwinned metallic alloys on Thursday (4/20) morning: 8:30-9:00, 106C PCC.
Couldn’t make it? You can find a recording of the talk here!
We spent the day today calibrating our new AJA magnetron sputtering system. Here were are conditioning a new Cr target.
Pralav was recently awarded a fellowship from FMC. The FMC fellowship provides 1 year of support for masters or doctoral students doing research related to the oil and gas industry. Congratulations, Pralav!
Congratulations to Nathan on successfully passing both his qualifying exams!
Megan Emigh successfully passed her preliminary exam today! Her dissertation proposal was entitled: “Influence of a nanotwinned, nanocrystalline microstructure on aging of a Ni-25Mo-8Cr superalloy.” You can find more details about this project here.