What question did this study set out to answer?

To investigate the atomistic interactions between helium bubbles and cascade-induced sonic and supersonic shock waves in tungsten.

August 19, 2026Journal of Applied Physics

Atomistic insight into helium bubble interactions with cascade-induced sonic and supersonic shock waves in tungsten

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Authors

FMFangZhe MaUniversity of Science and Technology of China NZNing ZhouChangzhou University ZLZaiXu LouUniversity of Science and Technology of China

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Implication

Molecular dynamics simulation demonstrates helium density dictates shock wave damage in tungsten, highlighting mechanisms for designing resilient fusion materials.

Key Points

To investigate the atomistic interactions between helium bubbles and cascade-induced sonic and supersonic shock waves in tungsten.
Conducted molecular dynamics simulations of collision cascades and shock waves interacting with helium bubbles in tungsten.
Analyzed the effects of varying helium-to-vacancy (He/V) ratios (0.1 to 3) across sonic and supersonic shock wave conditions.
Low He/V ratios (0.1, 0.5, 1) suppressed the thermal peak and defect formation, whereas high He/V ratios (2, 3) enhanced the thermal peak and promoted defects.
Supersonic waves destroyed helium bubble structures regardless of crystal orientation, whereas sonic waves favored bubble compression.
Helium bubbles induced four dislocation loop formation modes, including full collapse into vacancy loops, partial collapse, vacancy detachment-reaggregation, and interstitial loop creation.

Cite This Study

Ma et al. (2026) studied this question.

synapsesocial.com/papers/6a85642503308d306e2d7b96 https://doi.org/10.1063/5.0343567

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August 19, 2026Journal of Applied Physics

Atomistic insight into helium bubble interactions with cascade-induced sonic and supersonic shock waves in tungsten

View Full Paper

Ask AI

Bookmark

Authors

FMFangZhe MaUniversity of Science and Technology of China NZNing ZhouChangzhou University ZLZaiXu LouUniversity of Science and Technology of China

Discussion

Member takes

Implication

Molecular dynamics simulation demonstrates helium density dictates shock wave damage in tungsten, highlighting mechanisms for designing resilient fusion materials.

Key Points

To investigate the atomistic interactions between helium bubbles and cascade-induced sonic and supersonic shock waves in tungsten.
Conducted molecular dynamics simulations of collision cascades and shock waves interacting with helium bubbles in tungsten.
Analyzed the effects of varying helium-to-vacancy (He/V) ratios (0.1 to 3) across sonic and supersonic shock wave conditions.
Low He/V ratios (0.1, 0.5, 1) suppressed the thermal peak and defect formation, whereas high He/V ratios (2, 3) enhanced the thermal peak and promoted defects.
Supersonic waves destroyed helium bubble structures regardless of crystal orientation, whereas sonic waves favored bubble compression.
Helium bubbles induced four dislocation loop formation modes, including full collapse into vacancy loops, partial collapse, vacancy detachment-reaggregation, and interstitial loop creation.

Cite This Study

Ma et al. (2026) studied this question.

synapsesocial.com/papers/6a85642503308d306e2d7b96 https://doi.org/10.1063/5.0343567

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