Evan Maxey
Argonne National Laboratory
45 Papers
257 Citations
Evan Maxey is an academic researcher from Argonne National Laboratory. The author has contributed to research in topics: Nanoparticle & Neutron diffraction. The author has an hindex of 16, co-authored 41 publications. Previous affiliations of Evan Maxey include University of Nevada, Reno.
Chat about Author
Papers
Nucleation of dislocations and their dynamics in layered oxide cathode materials during battery charging
Andrej Singer,Andrej Singer,Minghao Zhang,Sunny Hy,Devin Cela,Chengcheng Fang,Thomas A. Wynn,Bao Qiu,Y. Xia,Zhaoping Liu,Andrew Ulvestad,Nelson Hua,James Wingert,Haodong Liu,Michael Sprung,Alexey Zozulya,Alexey Zozulya,Evan Maxey,Ross Harder,Ying Shirley Meng,Oleg Shpyrko +20 more
TL;DR: In this paper, the authors reveal the link between voltage fade and nucleation of a mobile dislocation network in the oxide nanoparticles, offering design ideas to restore the voltage in the battery.
Nucleation of dislocations and their dynamics in layered oxides cathode materials during battery charging
Andrej Singer,Sunny Hy,Minghao Zhang,Devin Cela,Chengcheng Fang,Bao Qiu,Y. Xia,Zhen Liu,Andrew Ulvestad,Nelson Hua,James Wingert,Haodong Liu,Michael Sprung,Alexey Zozulya,Evan Maxey,Ross Harder,Ying Shirley Meng,Oleg Shpyrko +17 more
TL;DR: In this paper, the authors observed nucleation of a mobile dislocation network in nanoparticles of lithium-rich layered oxide material and found that dislocations form more readily in the lithium-based layered oxide materials as compared with a conventional layered oxides.
Avalanching strain dynamics during the hydriding phase transformation in individual palladium nanoparticles.
Andrew Ulvestad,Andrew Ulvestad,M.J. Welland,Sean S. E. Collins,Ross Harder,Evan Maxey,James Wingert,Andrej Singer,Sunny Hy,Paul Mulvaney,Peter Zapol,Oleg Shpyrko +11 more
TL;DR: This work studies the hydriding phase transformation in individual palladium nanocubes in situ using coherent X-ray diffractive imaging and provides a general framework for designing and optimizing phase transformations for single nanocrystals in reactive environments.
Three-dimensional imaging of dislocation dynamics during the hydriding phase transformation
Andrew Ulvestad,M.J. Welland,Wonsuk Cha,Yaohua Liu,Jong Woo Kim,Ross Harder,Evan Maxey,Jesse N. Clark,Matthew J. Highland,Hoydoo You,Peter Zapol,Stephan O. Hruszkewycz,G. B. Stephenson +12 more
TL;DR: This work uses Bragg coherent diffractive imaging to image defects during the hydriding phase transformation of palladium nanocrystals and reveals how particle size and phase morphology affects transformations in the PdH system.
101
Three-dimensional X-ray diffraction imaging of dislocations in polycrystalline metals under tensile loading
Mathew J. Cherukara,Reeju Pokharel,Timothy S. O'Leary,J. Kevin Baldwin,Evan Maxey,Wonsuk Cha,Jörg Maser,Ross Harder,Saryu Fensin,Richard L. Sandberg +9 more
TL;DR: This is the first direct 3D X-ray imaging of the strain field surrounding a line defect within a grain of free-standing nanocrystalline material following tensile loading and it is shown that the measured strain field corresponds to a screw dislocation.
55