摘要
Distinct physical properties emerge at the nanoscale in Moirématerials,such as bilayer graphene and layeredmaterial superposition.This study explores similar structural features within a second-generation nickel-based superalloy,unveiling potential formation mechanisms.Introducing the real space Moiréinversion method(RSMIM)for nanoscale imaging,combined with the transmission electron microscopy(TEM)nano-Moiréinversion method,we reveal spatial angles between specimen and reference lattices in 3D.Simultaneously,we reconstruct the Moirépattern region to deepen us understand the phenomenon of Moiréformation.Focused on face-centered cubicstructures,the research identifies six spatial angles,shedding light on Moirépatterns in the superalloy.TheRSMIM not only enhances understanding but also expands 3D structure measurement capabilities.The RSMIMserved to validate TEM nano-Moiréinversion results,ascertaining the spatial relative angle between lattices,and establishing a theoretical simulation model for Moirépatterns.This study marks a substantial step towarddesigning high-performance nanomaterials by uncovering dynamic Moirévariations.
基金
supported by the National Natural Science Foundation of China(Grand Nos.12002053,12372178 and 12327801)
the Beijing Natural Science Foundation(Grand No.1204033).
