Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil Detonator
In this paper, the effect of grain size and micromorphology of Cu foil on the velocity of the flyer of an exploding foil detonator was studied. A Cu foil with different grain sizes and micromorphologies was prepared by the physical vapor deposition sputtering method. The flyer velocity of the Cu foi...
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doaj-e979ed3dff5c4cf7904138bbded465a42021-07-23T13:30:10ZengMDPI AGApplied Sciences2076-34172021-07-01116598659810.3390/app11146598Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil DetonatorKehua Han0Peng Deng1Enyi Chu2Qingjie Jiao3State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaNational Key Laboratory of Applied Physics and Chemistry, Shaanxi Applied Physics and Chemistry Research Institute, Xi’an 710061, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaIn this paper, the effect of grain size and micromorphology of Cu foil on the velocity of the flyer of an exploding foil detonator was studied. A Cu foil with different grain sizes and micromorphologies was prepared by the physical vapor deposition sputtering method. The flyer velocity of the Cu foil was measured by the photon Doppler technique (PDT). The influence of the grain size and micromorphology of the Cu foil (which was the core transducer of the exploding foil detonator) on the flyer velocity and reacted morphology was discussed. The results show that the grain size and micromorphology of the Cu film can greatly affect the velocity and morphology of the flyer. The grain size of the Cu film is more uniform, and the stimulus response in the middle area of the bridge foil is more concentrated. In addition, the current density becomes more uniform, resulting in a better explosion performance. Consequently, the speed of the formed flyer becomes higher, leading to a smoother flyer surface, which is more conductive to energy conversion.https://www.mdpi.com/2076-3417/11/14/6598exploding foil detonatorcopper foilgrain sizeflyer morphologyflyer velocity |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kehua Han Peng Deng Enyi Chu Qingjie Jiao |
spellingShingle |
Kehua Han Peng Deng Enyi Chu Qingjie Jiao Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil Detonator Applied Sciences exploding foil detonator copper foil grain size flyer morphology flyer velocity |
author_facet |
Kehua Han Peng Deng Enyi Chu Qingjie Jiao |
author_sort |
Kehua Han |
title |
Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil Detonator |
title_short |
Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil Detonator |
title_full |
Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil Detonator |
title_fullStr |
Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil Detonator |
title_full_unstemmed |
Effect of Grain Size and Micromorphology of Cu Foil on the Velocity of Flyer of Exploding Foil Detonator |
title_sort |
effect of grain size and micromorphology of cu foil on the velocity of flyer of exploding foil detonator |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-07-01 |
description |
In this paper, the effect of grain size and micromorphology of Cu foil on the velocity of the flyer of an exploding foil detonator was studied. A Cu foil with different grain sizes and micromorphologies was prepared by the physical vapor deposition sputtering method. The flyer velocity of the Cu foil was measured by the photon Doppler technique (PDT). The influence of the grain size and micromorphology of the Cu foil (which was the core transducer of the exploding foil detonator) on the flyer velocity and reacted morphology was discussed. The results show that the grain size and micromorphology of the Cu film can greatly affect the velocity and morphology of the flyer. The grain size of the Cu film is more uniform, and the stimulus response in the middle area of the bridge foil is more concentrated. In addition, the current density becomes more uniform, resulting in a better explosion performance. Consequently, the speed of the formed flyer becomes higher, leading to a smoother flyer surface, which is more conductive to energy conversion. |
topic |
exploding foil detonator copper foil grain size flyer morphology flyer velocity |
url |
https://www.mdpi.com/2076-3417/11/14/6598 |
work_keys_str_mv |
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