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Special Issue Editors

Prof. Dr. Carole Rossi

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Guest Editor

Laboratory for Analysis and Architecture of Systems (LAAS-CNRS), 31400 Toulouse, France
Interests: PyroMEMS; nanothermite; metal-oxide (2D layered materials and 3D assembling) nanostructures; reactive interfaces; multifunctional nanocomposite materials
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Prof. Dr. Ruiqi Shen

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Guest Editor

School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210096, China
Interests: nano materials; MEMS; energetic materials; space propulsion; laser chemical physics

Special Issue Information

Dear Colleagues,

Following the success of our previous Special Issue in 2020 (Miniaturized Pyro Devices), we are pleased to announce a further Special Issue of Micromachines dedicated to the latest research in optical trapping, to be titled “Microsystems for Space and Defense applications” and scheduled for publication in 2021.

The Special Issue will accept diverse forms of contributions, including research papers, communications, methods, and review articles that represent high-quality, fundamental and applied research relating to Space and Defence technologies.

Prof. Dr. Carole Rossi
Prof. Dr. Ruiqi Shen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Related Special Issue

Published Papers (1 paper)

Research

11 pages, 2814 KiB

Open AccessFeature PaperEditor’s ChoiceArticle

Observations on Detonation Growth of Lead Azide at Microscale

by Yunfei Mu, Wei Zhang, Ruiqi Shen and Yinghua Ye

Micromachines 2022, 13(3), 451; https://0-doi-org.brum.beds.ac.uk/10.3390/mi13030451 - 16 Mar 2022

Cited by 4 | Viewed by 2124

Abstract

Lead azide (LA) is a commonly used primary explosive, the detonation growth of which is difficult to study because it is so sensitive and usually has a small charge size in applications. We used photon Doppler velocimetry (PDV) and calibrated polyvinylidene fluoride (PVDF) gauges to reveal the detonation growth in LA, which was pressed in the confinements with controlled heights. The particle-velocity profiles, output pressure, unsteady detonation velocity, reaction time, and reaction-zone width were obtained and analyzed. Three phases of detonation propagation of LA microcharges are discussed. The volume reactions occur at the beginning of detonation in LA microcharges without forming complete shock profiles. Then the shock front is fast with a slow chemistry reaction zone, which is compressed continuously between the height of 0.8 mm and 2.5 mm. Finally, the steady detonation is built at a height of 2.5 mm. The stable detonation velocity and CJ pressure are 4726 ± 8 m/s and 17.12 ± 0.22 GPa. Additionally, the stable reaction zone time and width are 44 ± 7 ns and 148 ± 11 μm. The detailed detonation process has not previously been quantified in such a small geometry. Full article

(This article belongs to the Special Issue Microsystems for Space and Defense Applications)

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