Utilizing local phase transformation strengthening for nickel-base superalloys

  • Timothy M. Smith
  • Nikolai A. Zarkevich
  • Michael J. Mills
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  • Predicting the synthesizability of unknown crystals is important for accelerating materials discovery. Here, the synthesizability of crystals with any given composition and structure can be predicted by a deep learning model that maps crystals onto color-coded 3D images processed by convolutional neural networks.

    • Ali Davariashtiyani
    • Zahra Kadkhodaie
    • Sara Kadkhodaei
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  • Magnetic skyrmions are swirling topological spin textures induced by chiral interactions in non-centrosymmetric systems. Here, a Pt-Fe3Sn bilayer exhibits a thickness-dependent magnetic anisotropy and interfacial Dzyaloshinskii-Moriya interaction that are key to the controlled stabilization of a skyrmion crystal.

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  • Origami-inspired metamaterials are attractive for their programmable shape-shifting properties but are typically characterized by low structural rigidity. Here, 3D heterogeneous origami structures display highly reconfigurable mechanical properties, including finely controllable and reversible stiffness variation.

    • Yasuhiro Miyazawa
    • Hiromi Yasuda
    • Jinkyu Yang
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  • Charged domain walls in ferroelectrics are interesting as they may enhance electrical conductivity. Here, atomic-resolution imaging of Ca3–xSrxTi2O7 reveals that charged domain boundaries are stabilized by an out-of-phase translational shift of crystallographic domains and that Sr ions accumulate at the boundaries.

    • Hiroshi Nakajima
    • Kosuke Kurushima
    • Shigeo Mori
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