scholarly journals On Modeling the Combustion of a Single Micron-Sized Aluminum Particle with the Effect of Oxide Cap

ACS Omega ◽  
2021 ◽  
Author(s):  
Jiaxin Liu ◽  
Qingzhao Chu ◽  
Dongping Chen
Keyword(s):  
Aluminum Particle

scholarly journals Aluminum particle reactivity as a function of alumina shell structure: Amorphous versus crystalline

2020 ◽  
Vol 374 ◽  
pp. 33-39
Author(s):  
Renita K. Walzel ◽  
Valery I. Levitas ◽  
Michelle L. Pantoya
Keyword(s):  
Shell Structure ◽  
Aluminum Particle

Hydrogen Generation by Hydrolysis of the Ball Milled Al-C-KCl Composite Powder in Distilled Water

2012 ◽  
Vol 519 ◽  
pp. 87-91 ◽  
Author(s):  
Xia Ni Huang ◽  
Zhang Han Wu ◽  
Ke Cao ◽  
Wen Zeng ◽  
Chun Ju Lv ◽  
...  
Keyword(s):  
Particle Size ◽  
Reaction Temperature ◽  
Fine Particle ◽  
Composite Powder ◽  
Hydrogen Generation ◽  
Aluminum Particle ◽  
Generation Rate ◽  
Composite Powders ◽  
Fine Particle Size ◽  
Hydrolysis Of

In the present investigation, the Al-C-KCl composite powders were prepared by a ball milling processing in an attempt to improve the hydrogen evolution capacity of aluminum in water. The results showed that the hydrogen generation reaction is affected by KCl amount, preparation processing, initial aluminum particle size and reaction temperature. Increasing KCl amount led to an increased hydrogen generation volume. The use of aluminum powder with a fine particle size could promote the aluminum hydrolysis reaction and get an increased hydrogen generation rate. The reaction temperature played an important role in hydrogen generation rate and the maximum hydrogen generation rate of 44.8 cm3 min-1g-1of Al was obtained at 75oC. The XRD results identified that the hydrolysis byproducts are bayerite (Al(OH)3) and boehmite (AlOOH).

scholarly journals Measurements in Solid Propellant Plumes at Ambient Conditions

2011 ◽  
Author(s):  
Jonathan L. Height ◽  
Burl A. Donaldson ◽  
Walter Gill ◽  
Christian G. Parigger
Keyword(s):  
Temperature Distribution ◽  
Solid Propellant ◽  
Aluminum Particle ◽  
Burning Surface ◽  
Ambient Conditions ◽  
Aluminum Particles ◽  
Open Atmosphere ◽  
Particle Ignition ◽  
Accident Scenarios ◽  
Color Pyrometer

The study of aluminum particle ignition in an open atmosphere propellant burn is of particular interest when considering accident scenarios for rockets carrying high-value payloads. This study investigates the temperature of an open atmosphere Atlas V solid propellant burn as a function of height from the burning surface. Two instruments were used to infer this temperature: a two-color pyrometer and a spectrometer. The spectra were fitted to a model of energy states for aluminum monoxide. The temperature which provided the best match between the model and data was taken as the reaction temperature. Emissions above 30 inches from the surface of the propellant were not sufficiently strong for data reduction, perhaps obscured by the alumina smoke cloud. The temperature distribution in the plume increased slightly with distance from the burning surface, presumably indicating the delay in ignition and heat release from the larger aluminum particles in the propellant. The pyrometer and spectrometer results were found to be in excellent agreement indicating plume temperatures in the range of 2300K to 3000K.

Variations in Aluminum Particle Surface Energy and Reactivity Induced by Annealing and Quenching

2021 ◽  
pp. 152185
Author(s):  
Alan Williams ◽  
Igor Altman ◽  
Daniel Burnett ◽  
Ezequiel Gutierrez Zorrilla ◽  
Armando R. Garcia ◽  
...  
Keyword(s):  
Surface Energy ◽  
Aluminum Particle ◽  
Particle Surface

Analysis of aluminum particle combustion in a downward burning solid rocket propellant

Fuel ◽  
2019 ◽  
Vol 237 ◽  
pp. 405-412 ◽  
Author(s):  
Castillo Griego ◽  
Nadir Yilmaz ◽  
Alpaslan Atmanli
Keyword(s):  
Aluminum Particle ◽  
Solid Rocket Propellant ◽  
Rocket Propellant ◽  
Particle Combustion ◽  
Solid Rocket

Effect of Aluminum Particle Size on the Performance of Aluminized Explosives

2020 ◽  
Vol 45 (5) ◽  
pp. 807-813
Author(s):  
Xinghan Li ◽  
Hongbo Pei ◽  
Xu Zhang ◽  
Xianxu Zheng
Keyword(s):  
Particle Size ◽  
Aluminum Particle
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