Next Article in Journal
Relationship between Dislocation Density and Antibacterial Activity of Cryo-Rolled and Cold-Rolled Copper
Previous Article in Journal
Structure and Properties of Single-Layer MoS2 for Nano-Photoelectric Devices
Article Menu

Export Article

Open AccessArticle
Materials 2019, 12(2), 199; https://doi.org/10.3390/ma12020199

Facile Preparation of Micrometer KClO4/Zr Energetic Composite Particles with Enhanced Light Radiation

1
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
2
School of Materials Science and Engineering, Xihua University, Chengdu 610039, China
*
Authors to whom correspondence should be addressed.
Received: 2 December 2018 / Revised: 27 December 2018 / Accepted: 2 January 2019 / Published: 9 January 2019
Full-Text   |   PDF [5621 KB, uploaded 9 January 2019]   |  

Abstract

Developing energetic composite materials consisting of fuel and oxidizer is an effective strategy to enhance the energy release property. However, this strategy has rarely been applied in Potassium Perchlorate (KClO4)-containing energetic materials, even though KClO4 is a much stronger oxidizer than most previously reported metal-oxide oxidizer. One of the main obstacles is the lack of simple and in situ ways to introduce KClO4 into the composite. In present work, micrometer KClO4/Zirconium (KClO4/Zr) composite particles were successfully prepared using a facile chemical solution-deposition method. The structure and particle morphologies of as-obtained KClO4/Zr composite were characterized by X-ray diffraction (XRD) and scanning electronic microscope (SEM)-EDS (Energy Dispersive Spectrometer). The evolutionary combustion behavior was evaluated using flame-based light-radiation spectra and successive photography technique. Results showed that the morphology, light-radiation properties and flame-evolution characteristics of KClO4/Zr composite varied with the content of KClO4 and the particle size of Zr. Compared with the mechanical mixture of KClO4/Zr, the KClO4/Zr composite showed much higher light-radiation intensity and longer light-emission duration time after reasonably controlling the preparation parameters. Flame photographs revealed that the enhanced light radiation of KClO4/Zr composite should be ascribed to higher use efficiency of “oxygen” in the oxidizer, which promoted both the solid–solid and solid–gas reaction pathways between KClO4 and Zr. View Full-Text
Keywords: Potassium Perchlorate/Zirconium (KClO4/Zr) composite; light radiation; frame photographs; reaction pathways Potassium Perchlorate/Zirconium (KClO4/Zr) composite; light radiation; frame photographs; reaction pathways
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Kang, X.; Li, C.; Zheng, Z.; Cui, X. Facile Preparation of Micrometer KClO4/Zr Energetic Composite Particles with Enhanced Light Radiation. Materials 2019, 12, 199.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top