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Ammonium perchlorate

About: Ammonium perchlorate is a research topic. Over the lifetime, 2359 publications have been published within this topic receiving 33412 citations. The topic is also known as: AP.


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Journal ArticleDOI
TL;DR: In this article, a self-assembly of tannic acid (TA) and Fe(III) ion on the surface of aluminum was characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), Xray diffraction (XRD), and thermogravimetry-differential scanning calorimetry (TG-DSC), and the results showed that the TA-Fe interface layer in Al@TA-Fe can effectively promote the ignition of aluminum powder, which can make the aluminum powder be ignited at the temperature

23 citations

Journal ArticleDOI
TL;DR: In this paper, the lower boundary of a go/no-go ignition map (minimum ignition time vs. heat flux) was obtained for a quasi-homogeneous mixture of ammonium perchlorate (AP) and hydroxyterminated polybutadiene (HTPB) binder.
Abstract: Radiative ignition of quasi-homogeneous mixtures of ammonium perchlorate (AP) and hydroxyterminated polybutadiene (HTPB) binder has been investigated experimentally. Solid propellants consisting of fine AP (2 μm) and HTPB binder (~ 76/24% by mass) were ignited by CO2 laser radiation. The lower boundary of a go/no-go ignition map (minimum ignition time vs. heat flux) was obtained. Opacity was varied by adding carbon black up to 1% by mass. Ignition times ranged from 0.78 s to 0.076 s for incident fluxes ranging from 60 W/cm2 to 400 W/cm2. It was found that AP and HTPB are sufficiently strongly absorbing of 10.6 μm CO2 laser radiation (absorption coefficient ≈250 cm−1) so that the addition of carbon black in amounts typical of catalysts or opacitymodifying agents (up to 1%) would have only a small influence on radiative ignition times at 10.6 μm. A simple theoretical analysis indicated that the ignition time-flux data are consistent with in-depth absorption effects. Furthermore, this analysis showed that the assumption of surface absorption is not appropriate, even for this relatively opaque system. For broadband visible/near-infrared radiation, such as from burning metal/oxide particle systems, the effects of in-depth absorption would probably be even stronger.

23 citations

Journal ArticleDOI
TL;DR: In this paper, a mathematical model of the solid phase ignition of a structurally inhomogeneous metallized composite propellant by an incandescent small particle in the form of a cylindrical disk with allowance for free-convection heat sink into the environment is developed.
Abstract: A mathematical model of the solid-phase ignition of a structurally inhomogeneous metallized composite propellant by an incandescent small particle in the form of a cylindrical disk with allowance for free-convection heat sink into the environment is developed. A numerical study of the ignition delay time, the main integral characteristics of the process, is performed. The calculation results are compared to experimental data on the ignition of model propellant compositions based on ammonium perchlorate, butyl rubber, and ASD-4 aluminum powder.

23 citations

Journal ArticleDOI
TL;DR: In this paper, it was shown that using a plasticizer equilibrated insulation in an internal burning configuration can prevent liquid species migration and thus the previously observed ballistic anomalies are avoided.

23 citations

Journal ArticleDOI
TL;DR: In this article, it was shown that ammonium perchlorate (AP) can be ignited in a single step around 290°C with a particular concentration of methylammonium per chlorate (MAP).

22 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023106
2022209
2021100
2020113
2019100
201884