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Micromachines
Volume 15
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10.3390/mi15050589
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Article

A Micro Bridge-Wing-Thickened Low-Energy Exploding Foil Initiator Chip

by
Pengfei Xue
1,
Heng Hu
1,
Tao Wang
2,
Peng Xiong
1,
Mingyu Li
1,* and
Qingxuan Zeng
1,*
1
State Key Laboratory of Explosion Science and Technology, School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
2
China Ship Development and Design Center, Wuhan 430064, China
*
Authors to whom correspondence should be addressed.
Micromachines 2024, 15(5), 589; https://doi.org/10.3390/mi15050589
Submission received: 18 March 2024 / Revised: 18 April 2024 / Accepted: 27 April 2024 / Published: 28 April 2024
(This article belongs to the Section E：Engineering and Technology)
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Abstract

To enhance the energy efficiency of exploding foil initiator systems (EFIs) and mitigate energy loss due to ablation in the bridge-wing regions, a low-energy bridge-wing-thickened EFI chip was designed and fabricated. Computational analysis revealed that increasing the thickness of the bridge flanks significantly reduces ablation within the bridge region during the electrical explosion. The refinement of the design led to the adoption of a bridge flank thickness of 19 μm, with the bridge area dimensions specified as 0.25 mm × 0.25 mm × 4 μm. This bridge-wing-thickened EFI chip was produced by employing micro-electro-mechanical systems (MEMS) technology and underwent rigorous performance evaluations. The empirical results closely matched the computational predictions, thereby corroborating the precision of the proposed model in simulating the temperature distribution seen during the explosion process. Notably, this enhanced EFI design achieves a flyer velocity of 3800 m/s at a condition of 900 V/0.22 μF, signifying a significant advancement in EFI system efficiency and performance.
Keywords: exploding foil initiator; energy utilization; electrical explosion; electrothermal simulation exploding foil initiator; energy utilization; electrical explosion; electrothermal simulation

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MDPI and ACS Style

Xue, P.; Hu, H.; Wang, T.; Xiong, P.; Li, M.; Zeng, Q. A Micro Bridge-Wing-Thickened Low-Energy Exploding Foil Initiator Chip. Micromachines 2024, 15, 589. https://doi.org/10.3390/mi15050589

AMA Style

Xue P, Hu H, Wang T, Xiong P, Li M, Zeng Q. A Micro Bridge-Wing-Thickened Low-Energy Exploding Foil Initiator Chip. Micromachines. 2024; 15(5):589. https://doi.org/10.3390/mi15050589

Chicago/Turabian Style

Xue, Pengfei, Heng Hu, Tao Wang, Peng Xiong, Mingyu Li, and Qingxuan Zeng. 2024. "A Micro Bridge-Wing-Thickened Low-Energy Exploding Foil Initiator Chip" Micromachines 15, no. 5: 589. https://doi.org/10.3390/mi15050589

APA Style

Xue, P., Hu, H., Wang, T., Xiong, P., Li, M., & Zeng, Q. (2024). A Micro Bridge-Wing-Thickened Low-Energy Exploding Foil Initiator Chip. Micromachines, 15(5), 589. https://doi.org/10.3390/mi15050589

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