Abstract
Non-equilibrium process of combustion-wave propagation of thermite compositions (Mg/Fe203) inside the sealed steel tube have been investigated to study the burning rate at elevating pressure. Under confinement the hot gas-phase products, formed during thermite combustion result in considerable overpressure inside the tube that reverses the gas flow and leads to pressure-driven preheating effect of the burned-gas permeation. Convective origin of this preheating effect is discussed. The pressure-time dependency is obtained experimentally. The composition was pressed inside the steel tube in pellets; the size of each part was measured to obtain burning rate-pressure dependency. Both micro- and nanosized components were used to prepare thermite compositions under study. The significant difference in burning parameters of micron- and nanosized thermites is observed and analyzed. Based on obtained results, the combustion mechanism of thermites with the micro- and nanosized components is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 362-365 |
| Number of pages | 4 |
| Journal | Physics Procedia |
| Volume | 72 |
| DOIs | |
| Publication status | Published - 2015 |
| Externally published | Yes |
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Keywords
- Burning
- Combustion
- Heating
- Nanothermite
- Thermite
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Combustion of micro- and nanothermites under elevating pressure. / Monogarov, K.; Pivkina, Alia; Muravyev, N.; Meerov, D.; Dilhan, D.
In: Physics Procedia, Vol. 72, 2015, p. 362-365.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Combustion of micro- and nanothermites under elevating pressure
AU - Monogarov, K.
AU - Pivkina, Alia
AU - Muravyev, N.
AU - Meerov, D.
AU - Dilhan, D.
PY - 2015
Y1 - 2015
N2 - Non-equilibrium process of combustion-wave propagation of thermite compositions (Mg/Fe203) inside the sealed steel tube have been investigated to study the burning rate at elevating pressure. Under confinement the hot gas-phase products, formed during thermite combustion result in considerable overpressure inside the tube that reverses the gas flow and leads to pressure-driven preheating effect of the burned-gas permeation. Convective origin of this preheating effect is discussed. The pressure-time dependency is obtained experimentally. The composition was pressed inside the steel tube in pellets; the size of each part was measured to obtain burning rate-pressure dependency. Both micro- and nanosized components were used to prepare thermite compositions under study. The significant difference in burning parameters of micron- and nanosized thermites is observed and analyzed. Based on obtained results, the combustion mechanism of thermites with the micro- and nanosized components is discussed.
AB - Non-equilibrium process of combustion-wave propagation of thermite compositions (Mg/Fe203) inside the sealed steel tube have been investigated to study the burning rate at elevating pressure. Under confinement the hot gas-phase products, formed during thermite combustion result in considerable overpressure inside the tube that reverses the gas flow and leads to pressure-driven preheating effect of the burned-gas permeation. Convective origin of this preheating effect is discussed. The pressure-time dependency is obtained experimentally. The composition was pressed inside the steel tube in pellets; the size of each part was measured to obtain burning rate-pressure dependency. Both micro- and nanosized components were used to prepare thermite compositions under study. The significant difference in burning parameters of micron- and nanosized thermites is observed and analyzed. Based on obtained results, the combustion mechanism of thermites with the micro- and nanosized components is discussed.
KW - Burning
KW - Combustion
KW - Heating
KW - Nanothermite
KW - Thermite
UR - http://www.scopus.com/inward/record.url?scp=84966539040&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84966539040&partnerID=8YFLogxK
U2 - 10.1016/j.phpro.2015.09.111
DO - 10.1016/j.phpro.2015.09.111
M3 - Article
AN - SCOPUS:84966539040
VL - 72
SP - 362
EP - 365
JO - Physics Procedia
JF - Physics Procedia
SN - 1875-3884
ER -