Abstract
Boron is a promising component of energetic condensed systems due to its high gravimetric heat value, which is significantly higher than that one of aluminum. In the present work, two non-equilibrium processes, i.e., boron particles agglomeration and framework (slag) formation during combustion of high-energy compositions were investigated experimentally. The quench particle collection bomb technique was used to collect the condensed combustion products formed under nitrogen pressures of 0.1-4 MPa. The formation of a framework was visualized using high-speed video registration (1200 fps). Particle size, morphology, and surface structure of collected condensed products were evaluated using laser diffractometry and scanning electron microscopy. In the experiments, the weight of the collected condensed combustion products was about 30% of the initial sample weight, where 26% belonged to the products collected from the gas phase and 4% were remained in a highly-porous framework. The initial amorphous boron powder consisted of 1-micron particles, whereas agglomerated particles, which were collected from the gas phase, were 10 |um in diameter. The burning rate of compositions without binder was 4 times higher and the diameter of collected agglomerates was 10 times larger than those for compositions with binder.
| Original language | English |
|---|---|
| Pages (from-to) | 85-88 |
| Number of pages | 4 |
| Journal | Physics Procedia |
| Volume | 72 |
| DOIs | |
| Publication status | Published - 2015 |
| Externally published | Yes |
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Keywords
- Agglomeration
- Boron
- Energetic condensed systems
- Slag formation
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Boron particles agglomeration and slag formation during combustion of energetic condensed systems. / Meerov, D.; Monogarov, K.; Bragin, A.; Frolov, Yu; Nikiforova, Anna.
In: Physics Procedia, Vol. 72, 2015, p. 85-88.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Boron particles agglomeration and slag formation during combustion of energetic condensed systems
AU - Meerov, D.
AU - Monogarov, K.
AU - Bragin, A.
AU - Frolov, Yu
AU - Nikiforova, Anna
PY - 2015
Y1 - 2015
N2 - Boron is a promising component of energetic condensed systems due to its high gravimetric heat value, which is significantly higher than that one of aluminum. In the present work, two non-equilibrium processes, i.e., boron particles agglomeration and framework (slag) formation during combustion of high-energy compositions were investigated experimentally. The quench particle collection bomb technique was used to collect the condensed combustion products formed under nitrogen pressures of 0.1-4 MPa. The formation of a framework was visualized using high-speed video registration (1200 fps). Particle size, morphology, and surface structure of collected condensed products were evaluated using laser diffractometry and scanning electron microscopy. In the experiments, the weight of the collected condensed combustion products was about 30% of the initial sample weight, where 26% belonged to the products collected from the gas phase and 4% were remained in a highly-porous framework. The initial amorphous boron powder consisted of 1-micron particles, whereas agglomerated particles, which were collected from the gas phase, were 10 |um in diameter. The burning rate of compositions without binder was 4 times higher and the diameter of collected agglomerates was 10 times larger than those for compositions with binder.
AB - Boron is a promising component of energetic condensed systems due to its high gravimetric heat value, which is significantly higher than that one of aluminum. In the present work, two non-equilibrium processes, i.e., boron particles agglomeration and framework (slag) formation during combustion of high-energy compositions were investigated experimentally. The quench particle collection bomb technique was used to collect the condensed combustion products formed under nitrogen pressures of 0.1-4 MPa. The formation of a framework was visualized using high-speed video registration (1200 fps). Particle size, morphology, and surface structure of collected condensed products were evaluated using laser diffractometry and scanning electron microscopy. In the experiments, the weight of the collected condensed combustion products was about 30% of the initial sample weight, where 26% belonged to the products collected from the gas phase and 4% were remained in a highly-porous framework. The initial amorphous boron powder consisted of 1-micron particles, whereas agglomerated particles, which were collected from the gas phase, were 10 |um in diameter. The burning rate of compositions without binder was 4 times higher and the diameter of collected agglomerates was 10 times larger than those for compositions with binder.
KW - Agglomeration
KW - Boron
KW - Energetic condensed systems
KW - Slag formation
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UR - http://www.scopus.com/inward/citedby.url?scp=84966474603&partnerID=8YFLogxK
U2 - 10.1016/j.phpro.2015.09.024
DO - 10.1016/j.phpro.2015.09.024
M3 - Article
VL - 72
SP - 85
EP - 88
JO - Physics Procedia
JF - Physics Procedia
SN - 1875-3884
ER -