In-situ Atomic-scale Deformation Mechanism of ultrafine Nanocrystalline Pt

了解纳米晶(NC)金属的变形对其实际应用是至关重要的。到目前为止，已经通过模拟预测了晶粒度小于15纳米的超细纳米金属的变形机制，这还需要实验验证。本项目旨在利用不同的原位电子显微镜变形方法，在原子尺度上确定超细纳米铂的变形机制，并阐明变形行为对力学性能的影响。预期的结果将推进超细纳米金属的知识基础，并将为开发高强度/高塑性的先进金属材料提供指导，这些材料是开发柔性和可弯曲器件的支柱。

Understanding the deformation of nanocrystalline (NC) metals is crucial for their practical application. So far, the deformation mechanism of ultrafine NC metals with grain size below 15 nanometre has been predicted by simulations which need to be verified experimentally. Using different in situ transmission electron microscopy deformation approaches, this project aims to determine deformation mechanisms of ultrafine NC platinum (Pt) at atomic-scale and to clarify how the deformation behaviour affects mechanical properties. The expected outcomes will advance the knowledge base in ultrafine NC metals and will provide guidance for developing advanced metallic materials with high strength/ductility that are the backbone for developing flexible and bendable devices.