Thermal study of the decomposition of HTPB hybrid rocket fuel in the presence of azo-tetrazolate-based high nitrogen content high energy materials

2018 ◽  
Vol 134 (3) ◽  
pp. 1785-1797 ◽  
Author(s):  
Muntaha A. Yousef ◽  
M. Keith Hudson
Keyword(s):  
Nitrogen Content ◽  
High Energy ◽  
Thermal Study ◽  
High Nitrogen Content ◽  
Hybrid Rocket ◽  
High Nitrogen ◽  
Energy Materials ◽  
Rocket Fuel ◽  
High Energy Materials

Synthesis, characterization and thermolysis studies on triazole and tetrazole based high nitrogen content high energy materials

2006 ◽  
Vol 137 (2) ◽  
pp. 672-680 ◽  
Author(s):  
R. Sivabalan ◽  
M. Anniyappan ◽  
S.J. Pawar ◽  
M.B. Talawar ◽  
G.M. Gore ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
High Energy ◽  
High Nitrogen Content ◽  
High Nitrogen ◽  
Energy Materials ◽  
High Energy Materials

Studies on azotetrazolate based high nitrogen content high energy materials potential additives for rocket propellants

2004 ◽  
Vol 78 (3) ◽  
pp. 781-792 ◽  
Author(s):  
R. Sivabalan ◽  
M. B. Talawar ◽  
N. Senthilkumar ◽  
B. Kavitha ◽  
S. N. Asthana
Keyword(s):  
Nitrogen Content ◽  
High Energy ◽  
High Nitrogen Content ◽  
High Nitrogen ◽  
Energy Materials ◽  
High Energy Materials ◽  
Rocket Propellants

Studies on azotetrazolate based high nitrogen content high energy material spotential additives for rocket propellants

2004 ◽  
Vol 78 (3) ◽  
pp. 781-792
Author(s):  
R. Sivabalan ◽  
M. B. Talawar ◽  
N. Senthilkumar ◽  
B. Kavitha ◽  
S. N. Asthana
Keyword(s):  
Nitrogen Content ◽  
High Energy ◽  
High Nitrogen Content ◽  
High Nitrogen ◽  
Rocket Propellants ◽  
Energy Material ◽  
High Energy Material

The Design of Stable High Nitrogen Systems

1995 ◽  
Vol 418 ◽  
Author(s):  
V. A. Tartakovsky
Keyword(s):  
High Energy ◽  
Nitro Compounds ◽  
General Strategy ◽  
High Nitrogen ◽  
Energy Materials ◽  
High Energy Materials ◽  
Degree Of Stability ◽  
Working Out

AbstractA general strategy for the design of high nitrogen systems with an adequate degree of stability has been elaborated. The design of nitro compounds in which terminal nitro groups are bonded to the chain of several heteroatoms is a specific case within the strategy. In the process of working out the strategy a number of new high nitrogen systems ( dinitrazenic acid or dinitroamide HN3O4 and it salts, nitrodiazene oxides RN3O3 and tetrazine dioxides ) were discovered.A number of new types of nitro compounds (bicyclo nitro-bis-hydroxylamine, nitrohydrazine, nitrohydroxylamine, sulfo-N-nitroimide and bis-N-nitroimide were synthesized.This study opens new prospects in the field of the synthesis of high energy materials.

Poultry Manure as a Fertilizer

EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
Michael A. Davis ◽  
Doug R. Sloan ◽  
Gerald Kidder ◽  
R. D. Jacobs
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Nitrogen Content ◽  
Soil Amendment ◽  
Poultry Manure ◽  
Nutrient Retention ◽  
High Nitrogen Content ◽  
High Nitrogen ◽  
Animal Science ◽  
Fact Sheet

Animal manures have been used as natural crop fertilizers for centuries. Because of poultry manure’s high nitrogen content, it has long been recognized as one of the most desirable manures. Besides fertilizing crops, manures also supply other essential plant nutrients and serve as a soil amendment by adding organic matter, which helps improve the soil’s moisture and nutrient retention. Organic matter persistence will vary with temperature, drainage, rainfall, and other environmental factors. This 2-page fact sheet was written by Michael A. Davis, D.R. Sloan, Gerald Kidder, and R.D. Jacobs, and published by the UF Department of Animal Science, November 2013. http://edis.ifas.ufl.edu/aa205

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.

THERMAL BEHAVIOR AND IGNITION OF HIGH-ENERGY MATERIALS CONTAINING B, ALB2, AND TIB2

2020 ◽  
Author(s):  
A. G. Korotkikh ◽  
◽  
V. A. Arkhipov ◽  
I. V. Sorokin ◽  
E. A. Selikhova ◽  
...  
Keyword(s):  
Heat Flux ◽  
Thermal Behavior ◽  
Flux Density ◽  
Ignition Delay ◽  
Delay Time ◽  
Heat Flux Density ◽  
Ignition Delay Time ◽  
High Energy ◽  
Energy Materials ◽  
High Energy Materials

The paper presents the results of ignition and thermal behavior for samples of high-energy materials (HEM) based on ammonium perchlorate (AP) and ammonium nitrate (AN), active binder and powders of Al, B, AlB2, and TiB2. A CO2 laser with a heat flux density range of 90-200 W/cm2 was used for studies of ignition. The activation energy and characteristics of ignition for the HEM samples were determined. Also, the ignition delay time and the surface temperature of the reaction layer during the heating and ignition for the HEM samples were determined. It was found that the complete replacement of micron-sized aluminum powder by amorphous boron in a HEM sample leads to a considerable decrease in the ignition delay time by a factor of 2.2-2.8 at the same heat flux density due to high chemical activity and the difference in the oxidation mechanisms of boron particles. The use of aluminum diboride in a HEM sample allows one to reduce the ignition delay time of a HEM sample by a factor of 1.7-2.2. The quasi-stationary ignition temperature is the same for the AlB2-based and AlB12-based HEM samples.

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