Study of aluminum particle combustion in solid propellant plumes using digital in-line holography and imaging pyrometry

Chen, Yi; Guildenbecher, Daniel Robert; Hoffmeister, Kathryn N. Gabet; Cooper, Marcia A.; Stauffacher, Howard Lee; Oliver, Michael S.; Washburn, Ephraim B.

doi:10.1016/j.combustflame.2017.04.016

Cited by 173 publications

(69 citation statements)

References 38 publications

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“…Metal oxides can make a certain contribution to the acceleration of combustion with a catalytic activity. In this case, highly dispersed g-alumina is an effective catalyst for combustion of propellants based on AP and inert binders like HTPB [27] as well as the propellants based on ammonium nitrate (AN) [28]. Copper oxide accelerates the doublebase gun powders combustion due to its decomposition products (nitrogen oxides).…”

Section: Effect Of N-me Additivementioning

confidence: 99%

Burning Characteristics of the HMX/CL‐20/AP/Polyvinyltetrazole Binder/Al Solid Propellants Loaded with Nanometals

Sergienko

Popenko

Slyusarsky

et al. 2018

Propellants Explo Pyrotec

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The paper investigated the effect of metal nanopowders additive on the combustion properties of HMX/CL‐20/AP/polyvinyltetrazole binder/Al propellants. Using thermal analysis, the authors described the effect of aluminum, boron, zinc, nickel, copper, and molybdenum and identified the combustion in a pressure range from 4 to 10 MPa with a pressure step of 1 MPa. No significant correlation between the oxidation properties of the n‐Me powders and the combustion properties of propellants was discovered. An addition of nanopowders caused an increase in the propellant burning rate by approximately 30 % for n‐Al, n‐B, n‐Ni, and n‐Mo independent from the pressure values. An addition of n‐Cu resulted in a burning rate increase by a factor of 4.9 due to coppers’ probable catalytic activity during interaction with nitroesters and cyclic nitramines in a solid phase. n‐Zn additive increased the propellant burning rate by factors 2.3 and 3.6 at 4 and 10 MPa, respectively, due to catalytic activity of zinc in a gaseous phase.

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Section: Effect Of N-me Additivementioning

confidence: 99%

Burning Characteristics of the HMX/CL‐20/AP/Polyvinyltetrazole Binder/Al Solid Propellants Loaded with Nanometals

Sergienko

Popenko

Slyusarsky

et al. 2018

Propellants Explo Pyrotec

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“…From the basic theory 53 presented in Eqs. (5) and (6), pure phase-objects should not be visible in PCDIH. Interestingly, it is actually possible to see the interference patterns and to refocus the shock-wave edges in PCDIH 35 .…”

Section: Experimental Measurementsmentioning

confidence: 99%

“…C oherent imaging methods like digital in-line holography (DIH) 1,2 are essential for three-dimensional (3D) object tracking along a single line-of-sight. Traditional DIH techniques have been successfully applied in various systems, from high-speed multi-phase flows 3,4 to combustion environments [5][6][7] . Supersonic, hypersonic, and explosive environments, however, create challenges for coherent imaging methods like DIH due to phase distortions generated by shock-waves.…”

mentioning

confidence: 99%

Megahertz-rate shock-wave distortion cancellation via phase conjugate digital in-line holography

et al. 2020

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Holography is a powerful tool for three-dimensional imaging. However, in explosive, supersonic, hypersonic, cavitating, or ionizing environments, shock-waves and density gradients impart phase distortions that obscure objects in the field-of-view. Capturing time-resolved information in these environments also requires ultra-high-speed acquisition. To reduce phase distortions and increase imaging rates, we introduce an ultra-high-speed phase conjugate digital in-line holography (PCDIH) technique. In this concept, a coherent beam passes through the shock-wave distortion, reflects off a phase conjugate mirror, and propagates back through the shock-wave, thereby minimizing imaging distortions from phase delays. By implementing the method using a pulse-burst laser setup at up to 5 million-frames-persecond, time-resolved holograms of ultra-fast events are now possible. This technique is applied for holographic imaging through laser-spark plasma-generated shock-waves and to enable three-dimensional tracking of explosively generated hypersonic fragments. Simulations further advance our understanding of physical processes and experiments demonstrate ultra-high-speed PCDIH techniques for capturing dynamics.

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“…Opportunities for observing high-temperature high-speed processes, in particular, nanopowder combustion processes, appear with the use of laser radiation and high-speed video recording [10][11][12][13][14][15][16][17]. When an observation object is illuminated by narrow-band laser radiation, a part of the radiation is reflected from the surface.…”

Section: Introductionmentioning

confidence: 99%

Laser Systems for Distant Monitoring of Nanopowder Combustion

Li¹,

Antipov²,

Mostovshchikov³

et al. 2019

PIER M

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The paper discusses the application of laser illumination and brightness amplification techniques for studying the process of high-temperature combustion of aluminum and iron nanopowders and their mixtures. The laser equipment for visualization based on solid-state laser illuminator, brightness amplifier on copper bromide vapors and high-speed camera is considered. These approaches allow the increase of monitoring distance to 50 cm, which is important for high-temperature processes imaging. The video images allow studying the surface morphology changes during high-temperature combustion identifying the main stages of combustion, spreading of the heat waves and cooling.

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Study of aluminum particle combustion in solid propellant plumes using digital in-line holography and imaging pyrometry

Cited by 173 publications

References 38 publications

Burning Characteristics of the HMX/CL‐20/AP/Polyvinyltetrazole Binder/Al Solid Propellants Loaded with Nanometals

Burning Characteristics of the HMX/CL‐20/AP/Polyvinyltetrazole Binder/Al Solid Propellants Loaded with Nanometals

Megahertz-rate shock-wave distortion cancellation via phase conjugate digital in-line holography

Laser Systems for Distant Monitoring of Nanopowder Combustion

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