Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 5, 2018, Issue in Progress
Previous Article Next Article

Integration of the 3DOM Al/Co3O4 nanothermite film with a semiconductor bridge to realize a high-output micro-energetic igniter

Author affiliations

Abstract

Microigniters play an important role for the reliable initiation of micro explosive devices. However, the microigniter is still limited by the low out-put energy to realize high reliability and safety. Integration of energetic materials with microigniters is an effective method to enhance the ignition ability. In this work, a Al/Co3O4 nanothermite film with a three-dimensionally ordered macroporous structure was prepared by the deposition of nanoscale Al layers using magnetron sputtering on Co3O4 skeletons that are synthesized using an inverse template method. Both the uniform structure and nanoscale contact between the Al layers and the Co3O4 skeletons lead to an excellent exothermicity. In order to investigate the ignition properties, a micro-energetic igniter has been fabricated by the integration of the Al/Co3O4 nanothermite film with a semiconductor bridge microigniter. The thermite reactions between the nanoscale Al layer and the Co3O4 skeleton extensively promote the intensity of the spark, the length in duration and the size of the area, which greatly enhance the ignition reliability of the micro-energetic igniter. Moreover, this novel design enables the micro-energetic igniter to fire the pyrotechnic Zr/Pb3O4 in a gap of 3.7 mm by capacitor discharge stimulation and to keep the intrinsic instantaneity high and firing energy low. The realization of gap ignition will surely improve the safety level of initiating systems and have a significant impact on the design and application of explosive devices.

Graphical abstract: Integration of the 3DOM Al/Co3O4 nanothermite film with a semiconductor bridge to realize a high-output micro-energetic igniter

Back to tab navigation

Supplementary files

Article information


Submitted
13 Oct 2017
Accepted
02 Jan 2018
First published
11 Jan 2018

This article is Open Access

RSC Adv., 2018,8, 2552-2560
Article type
Paper

Integration of the 3DOM Al/Co3O4 nanothermite film with a semiconductor bridge to realize a high-output micro-energetic igniter

Z. Zheng, W. Zhang, C. Yu, G. Zheng, K. Ma, Z. Qin, J. Ye and Y. Chao, RSC Adv., 2018, 8, 2552
DOI: 10.1039/C7RA11293A

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements