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Showing 1–9 of 9 results
Advanced filters: Author: Florian Banhart Clear advanced filters

  • Phase separation in nickel-based superalloys is known to be complex and to determine the resulting microstructure and mechanical properties. Here, the authors use atom probe tomography to study phase development, finding that nickel concentration is critical in driving the formation of the γ phase from γ′.

    • Florian Vogel
    • Nelia Wanderka
    • John Banhart
    Research
    Nature Communications
    Volume: 4, P: 1-7

  • Devices made up of nanowires offer promise for a range of electronic, photonic and energy applications. Liuet al. fabricate a miniature capacitor by employing a thin layer of Cu2O as a separator between layers of carbon and copper.

    • Zheng Liu
    • Yongjie Zhan
    • Pulickel M. Ajayan
    Research
    Nature Communications
    Volume: 3, P: 1-7

  • Single-walled carbon nanotubes have been used as test tubes for chemical reactions in an electron microscope. It is now shown that they can also act as reactors for the synthesis of narrow, helically twisted graphene nanoribbons through electron irradiation of functionalized fullerenes.

    • Florian Banhart
    News & Views
    Nature Materials
    Volume: 10, P: 651-652

  • Previous studies have predicted that carbyne (a single chain of sp1carbon atoms) goes from being metallic to semiconducting under strain. Here, the authors measure the electronic properties of carbyne, confirming the prediction and showing that the conductivity is determined by strain and by the contacts.

    • A. La Torre
    • A. Botello-Mendez
    • F. Banhart
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7

  • Detailed knowledge of the transition states and kinetics of fast reactions in nanoparticles is desirable for many applications, but challenging to access. Here the authors obtain insight in nickel oxide reduction, using single-shot electron pulses in an electron microscope with nanosecond resolution.

    • Shyam K. Sinha
    • Amir Khammari
    • Florian Banhart
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8

  • The mechanical properties of nanotube bundles are limited by the sliding of individual nanotubes across each other. Introducing crosslinks between the nanotubes by electron irradiation prevents sliding, and leads to dramatic improvements in strength.

    • Pulickel M. Ajayan
    • Florian Banhart
    News & Views
    Nature Materials
    Volume: 3, P: 135-136

  • The Norgett−Robinson−Torrens displacements per atom model is the benchmark to assess radiation damage in metals but has well-known limitations. Here, the authors use molecular dynamics to introduce material-specific modifications to describe radiation damage more realistically.

    • Kai Nordlund
    • Steven J. Zinkle
    • David Simeone
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Ti3O5 can switch between metallic and insulating phases but its origin and the link between the phase coexistence and dynamics remain unknown. Here, time-resolved X-ray diffraction and numerical simulations were used to observe how heat-driven transition in laser excited Ti3O5 crystallites occur in space and time.

    • Ritwika Mandal
    • Maciej Lorenc
    • Céline Mariette
    ResearchOpen Access
    Communications Materials
    Volume: 6, P: 1-10