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Visualization of ultrafast melting initiated from radiation-driven defects in solids

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Visualization of ultrafast melting initiated from radiation-driven defects in solids. / Mo, M.; Murphy, S.; Chen, Z. et al.
In: Science Advances, Vol. 5, No. 5, eaaw0392, 24.05.2019.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Mo, M, Murphy, S, Chen, Z, Fossati, P, Li, R, Wang, Y, Wang, X & Glenzer, S 2019, 'Visualization of ultrafast melting initiated from radiation-driven defects in solids', Science Advances, vol. 5, no. 5, eaaw0392. https://doi.org/10.1126/sciadv.aaw0392

APA

Mo, M., Murphy, S., Chen, Z., Fossati, P., Li, R., Wang, Y., Wang, X., & Glenzer, S. (2019). Visualization of ultrafast melting initiated from radiation-driven defects in solids. Science Advances, 5(5), Article eaaw0392. https://doi.org/10.1126/sciadv.aaw0392

Vancouver

Mo M, Murphy S, Chen Z, Fossati P, Li R, Wang Y et al. Visualization of ultrafast melting initiated from radiation-driven defects in solids. Science Advances. 2019 May 24;5(5):eaaw0392. doi: 10.1126/sciadv.aaw0392

Author

Mo, M. ; Murphy, S. ; Chen, Z. et al. / Visualization of ultrafast melting initiated from radiation-driven defects in solids. In: Science Advances. 2019 ; Vol. 5, No. 5.

Bibtex

@article{41c441334ccc410695dd8abe3da774ba,
title = "Visualization of ultrafast melting initiated from radiation-driven defects in solids",
abstract = "Materials exposed to extreme radiation environments such as fusion reactors or deep spaces accumulate substantial defect populations that alter their properties and subsequently the melting behavior. The quantitative characterization requires visualization with femtosecond temporal resolution on the atomic-scale length through measurements of the pair correlation function. Here, we demonstrate experimentally that electron diffraction at relativistic energies opens a new approach for studies of melting kinetics. Our measurements in radiation-damaged tungsten show that the tungsten target subjected to 10 displacements per atom of damage undergoes a melting transition below the melting temperature. Twoerature molecular dynamics simulations reveal the crucial role of defect clusters, particularly nanovoids, in driving the ultrafast melting process observed on the time scale of less than 10 ps. These results provide new atomic-level insights into the ultrafast melting processes of materials in extreme environments. {\textcopyright} 2019 by the Authors.",
keywords = "Atoms, Defects, Metal melting, Molecular dynamics, Radiation damage, Tungsten, Visualization, Displacements per atoms, Extreme environment, Melting transitions, Molecular dynamics simulations, Pair correlation functions, Quantitative characterization, Radiation environments, Relativistic energy, Melting",
author = "M. Mo and S. Murphy and Z. Chen and P. Fossati and R. Li and Y. Wang and X. Wang and S. Glenzer",
year = "2019",
month = may,
day = "24",
doi = "10.1126/sciadv.aaw0392",
language = "English",
volume = "5",
journal = "Science Advances",
issn = "2375-2548",
publisher = "American Association for the Advancement of Science",
number = "5",

}

RIS

TY - JOUR

T1 - Visualization of ultrafast melting initiated from radiation-driven defects in solids

AU - Mo, M.

AU - Murphy, S.

AU - Chen, Z.

AU - Fossati, P.

AU - Li, R.

AU - Wang, Y.

AU - Wang, X.

AU - Glenzer, S.

PY - 2019/5/24

Y1 - 2019/5/24

N2 - Materials exposed to extreme radiation environments such as fusion reactors or deep spaces accumulate substantial defect populations that alter their properties and subsequently the melting behavior. The quantitative characterization requires visualization with femtosecond temporal resolution on the atomic-scale length through measurements of the pair correlation function. Here, we demonstrate experimentally that electron diffraction at relativistic energies opens a new approach for studies of melting kinetics. Our measurements in radiation-damaged tungsten show that the tungsten target subjected to 10 displacements per atom of damage undergoes a melting transition below the melting temperature. Twoerature molecular dynamics simulations reveal the crucial role of defect clusters, particularly nanovoids, in driving the ultrafast melting process observed on the time scale of less than 10 ps. These results provide new atomic-level insights into the ultrafast melting processes of materials in extreme environments. © 2019 by the Authors.

AB - Materials exposed to extreme radiation environments such as fusion reactors or deep spaces accumulate substantial defect populations that alter their properties and subsequently the melting behavior. The quantitative characterization requires visualization with femtosecond temporal resolution on the atomic-scale length through measurements of the pair correlation function. Here, we demonstrate experimentally that electron diffraction at relativistic energies opens a new approach for studies of melting kinetics. Our measurements in radiation-damaged tungsten show that the tungsten target subjected to 10 displacements per atom of damage undergoes a melting transition below the melting temperature. Twoerature molecular dynamics simulations reveal the crucial role of defect clusters, particularly nanovoids, in driving the ultrafast melting process observed on the time scale of less than 10 ps. These results provide new atomic-level insights into the ultrafast melting processes of materials in extreme environments. © 2019 by the Authors.

KW - Atoms

KW - Defects

KW - Metal melting

KW - Molecular dynamics

KW - Radiation damage

KW - Tungsten

KW - Visualization

KW - Displacements per atoms

KW - Extreme environment

KW - Melting transitions

KW - Molecular dynamics simulations

KW - Pair correlation functions

KW - Quantitative characterization

KW - Radiation environments

KW - Relativistic energy

KW - Melting

U2 - 10.1126/sciadv.aaw0392

DO - 10.1126/sciadv.aaw0392

M3 - Journal article

VL - 5

JO - Science Advances

JF - Science Advances

SN - 2375-2548

IS - 5

M1 - eaaw0392

ER -