Atomistic Measurement and Modeling of Intrinsic Fracture Toughness of Two-Dimensional Materials

Authors

Xu Zhang
Hoang Nguyen
Xiang Zhang
Pulickel M Ajayan
Jianguo Wen
Horacio D Espinosa

Publication Date

11-8-2022

Journal

Proceedings of the National Academy of Sciences of the United States of America

Abstract

Quantifying the intrinsic mechanical properties of two-dimensional (2D) materials is essential to predict the long-term reliability of materials and systems in emerging applications ranging from energy to health to next-generation sensors and electronics. Currently, measurements of fracture toughness and identification of associated atomistic mechanisms remain challenging. Herein, we report an integrated experimental-computational framework in which in-situ high-resolution transmission electron microscopy (HRTEM) measurements of the intrinsic fracture energy of monolayer MoS

Keywords

atomistic measurements, fracture energy, transition metal dichalcogenide, atomistic J integral, bond dissociation

Comments

Supplementary Materials

DOI

10.1073/pnas.2206756119

PMID

36331995

PMCID

PMC9659395

PubMedCentral® Posted Date

November 2022

PubMedCentral® Full Text Version

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