English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Under hydrostatic pressure, alpha-quartz undergoes solid-state mechanicalamorphization wherein the interpenetration of SiO4 tetrahedra occurs and thematerial loses crystallinity. This phase transformation requires a highhydrostatic pressure of 14 GPa because the repulsive forces resulting from theionic nature of the Si-O bonds prevent the severe distortion of the atomicconfiguration. Herein, we experimentally and computationally demonstrate thate-beam irradiation changes the nature of the interatomic bonds in alpha-quartzand enhances the solid-state mechanical amorphization at nanoscale.Specifically, during in situ uniaxial compression, a larger permanentdeformation occurs in alpha-quartz micropillars compressed during e-beamirradiation than in those without e-beam irradiation. Microstructural analysisreveals that the large permanent deformation under e-beam irradiationoriginates from the enhanced mechanical amorphization of alpha-quartz and thesubsequent viscoplastic deformation of the amorphized region. Further,atomic-scale simulations suggest that the delocalized excess electronsintroduced by e-beam irradiation move to highly distorted atomic configurationsand alleviate the repulsive force, thus reducing the barrier to the solid-statemechanical amorphization. These findings deepen our understanding ofelectron-matter interactions and can be extended to new glass forming andprocessing technologies at nano- and microscale.

E-beam-enhanced solid-state mechanical amorphization of alpha-quartz: Reducing deformation barrier via localized excess electrons as mobile anions