Formulation Factors and Properties of Condensed Combustion Products

2016 ◽  
pp. 319-339 ◽  
Author(s):  
Valery A. Babuk
Keyword(s):  
Combustion Products ◽  
Condensed Combustion Products ◽  
Formulation Factors

EFFECT OF BORON ON THE COMBUSTION CHARACTERISTICS OF METALLIZED HIGH-ENERGY MATERIALS

2020 ◽  
Author(s):  
A. Korotkikh ◽  
◽  
I. Sorokin ◽  
◽  
Keyword(s):  
Specific Impulse ◽  
Equilibrium Composition ◽  
Combustion Products ◽  
High Energy ◽  
Combustion Characteristics ◽  
Solid Propellants ◽  
Energy Materials ◽  
High Energy Materials ◽  
Condensed Combustion Products ◽  
Active Fuel Binder

The paper presents the results of thermodynamic calculations of the effect of pure boron additives on combustion characteristics of high-energy materials (HEM) based on ammonium perchlorate, ammonium nitrate, active fuel-binder, and powders of aluminum Al, titanium Ti, magnesium Mg, and boron B. The combustion parameters and the equilibrium composition of condensed combustion products (CCPs) of HEM model compositions were obtained with thermodynamic calculation program “Terra.” The compositions of solid propellants with different ratios of metals (Al/B, Ti/B, Mg/B, and Al/Mg/B) were considered. The combustion temperature Tad in a combustion chamber, the vacuum specific impulse J at the nozzle exit, and the mass fraction ma of the CCPs for HEMs were determined.

IGNITION, COMBUSTION, AND AGGLOMERATION OF HIGH-ENERGY MATERIALS BASED ON ALUMINUM AND BORON

2020 ◽  
Author(s):  
A. G. Korotkikh ◽  
◽  
V. A. Arkhipov ◽  
O. G. Glotov ◽  
I. V. Sorokin ◽  
...  
Keyword(s):  
Burning Rate ◽  
Ignition Time ◽  
Combustion Products ◽  
High Energy ◽  
Metal Powders ◽  
Energy Materials ◽  
Complete Replacement ◽  
Aluminum Powders ◽  
High Energy Materials ◽  
Condensed Combustion Products

The burning rate control of the high-energy materials (HEM) is mainly achieved by introducing the catalysts in composite solid propellant as well as by partial or complete replacement of ammonium perchlorate (AP) and ammonium nitrate by nitramines that change the equivalence ratio of formulation, or by varying the particle size of oxidizer and metal fuels. Promising metallic fuels are highly dispersed aluminum powders, which are characterized by different dispersity and passivation method, as well as bimetallic powders or mixtures of aluminum and other metals, their alloys, and metal powders with various coatings. In this study, the Al-based, Al/B-based, and Al/Fe-based HEM compositions have been used for comparative analysis of the ignition, combustion, and agglomeration characteristics. At the use of boron additive in the Al-based HEM, the ignition time is decreased by a factor of 1.2-1.4 and the burning rate is virtually unchanged as compared with that for the Al-based HEM. However, the agglomeration is significantly enhanced, which is manifested in the increase in the agglomerate particle content in condensed combustion products (CCP), increase in the agglomerate mean diameter, and increase in the unburned metal fraction in agglomerates.

Experimental investigation on the condensed combustion products of aluminized GAP-based propellants

2020 ◽  
Vol 97 ◽  
pp. 105595 ◽  
Author(s):  
Huan Liu ◽  
Wen Ao ◽  
Peijin Liu ◽  
Songqi Hu ◽  
Xiang Lv ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Combustion Products ◽  
Condensed Combustion Products

Effect of mass forces on combustion of heterogeneous systems with condensed combustion products

1986 ◽  
Vol 22 (1) ◽  
pp. 20-23 ◽  
Author(s):  
A. I. Kirdyashkin ◽  
Yu. M. Maksimov ◽  
E. A. Nekrasov
Keyword(s):  
Heterogeneous Systems ◽  
Combustion Products ◽  
Condensed Combustion Products

Condensed Combustion Products at the Burning Surface of Aluminized Solid Propellant

1999 ◽  
Vol 15 (6) ◽  
pp. 783-793 ◽  
Author(s):  
V. A. Babuk ◽  
V. A. Vasilyev ◽  
M. S. Malakhov
Keyword(s):  
Solid Propellant ◽  
Burning Surface ◽  
Combustion Products ◽  
Condensed Combustion Products
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