Results 91 to 100 of about 210 (122)
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Journal of Thermal Analysis and Calorimetry, 2010
The composite modified double base (CMDB) propellants (nos. RB0601 and RB0602) containing 3,6-bis (1H-1,2,3,4-tetrazol-5-yl-amino)-1,2,4,5-tetrazine (BTATz) without and with the ballistic modifier were prepared and their thermal behaviors, nonisothermal decomposition reaction kinetics, thermal safety and burning rates were investigated.
Jian-Hua Yi +8 more
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The composite modified double base (CMDB) propellants (nos. RB0601 and RB0602) containing 3,6-bis (1H-1,2,3,4-tetrazol-5-yl-amino)-1,2,4,5-tetrazine (BTATz) without and with the ballistic modifier were prepared and their thermal behaviors, nonisothermal decomposition reaction kinetics, thermal safety and burning rates were investigated.
Jian-Hua Yi +8 more
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Journal of Thermal Analysis and Calorimetry, 2013
The high nitrogen compound 3,6-bis(1H-1,2,3,4-tetrazol-5-yl-amino)-1,2,4,5-tetrazine and the high energy density material hexanitrohexaazaisowurtzitane (HNIW), were used as substitute of hexogen (RDX) in the composite modified double base (CMDB) propellant formulations, the propellant samples were prepared, the thermal behaviors, nonisothermal reaction
Jian-Hua Yi +5 more
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The high nitrogen compound 3,6-bis(1H-1,2,3,4-tetrazol-5-yl-amino)-1,2,4,5-tetrazine and the high energy density material hexanitrohexaazaisowurtzitane (HNIW), were used as substitute of hexogen (RDX) in the composite modified double base (CMDB) propellant formulations, the propellant samples were prepared, the thermal behaviors, nonisothermal reaction
Jian-Hua Yi +5 more
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Combustion of HMX‐CMDB Propellants (II)
Propellants, Explosives, Pyrotechnics, 1985AbstractThe burning rate characteristics of HMX‐CMDB propellants were examined as a function of HMX concentration. In the region of low HMX concentration, below about 50%, the burning rate decreases with increasing the HMX concentration. However, in the region of high HMX concentration, above about 50%, the burning rate increases with increasing the ...
Y. Yano, N. Kubota
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Ballistic Modification of RDX‐Based CMDB Propellants
Propellants, Explosives, Pyrotechnics, 1988AbstractThe effect of lead and copper salts and certain metallic oxides was studied on the burning rates of RDX‐based CMDB propellants in the pressure region 35–105 [kg/cm2]. Lead methylene disalicylate (LMDS), basic copper salicylate (BCS). cobaltic oxide and lead stannate produced higher burning rates by 10%–16%.
K. V. Raman, H. Singh
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Application of Nano‐Sized RDX in CMDB Propellant with High Solid Content
Propellants, Explosives, Pyrotechnics, 2021AbstractCompared to the ordinary RDX, nano‐sized RDX has many more excellent properties. Therefore two kinds of CMDB propellant were prepared for comparison. One is the normal CMDB propellant called M‐CMDB propellant, the other is N‐CMDB propellant which adds nano‐sized RDX to CMDB propellant.
Haomiao Yu +5 more
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Combustion Effects of Nitrofulleropyrrolidine on RDX‐CMDB Propellants
Propellants, Explosives, Pyrotechnics, 2014AbstractThe effect of N‐methyl‐2‐(3‐nitrophenyl)pyrrolidino[3′,4′:1,2]fullerene (mNPF) on the decomposition characteristics of hexogen (RDX) was investigated using differential scanning calorimetry (DSC). The results show that mNPF can accelerate the decomposition of RDX, the peak temperature (Tp) of the exothermal decomposition is reduced by 6.4 K ...
Bo Jin +6 more
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Applying Mechanically Activated Al/PTFE in CMDB Propellant
Propellants, Explosives, Pyrotechnics, 2018AbstractA novel reactive powder (aluminum/polytetrafluoroethylene, Al/PTFE 75/25 mass %) containing two kinds of PTFE (pre‐sintering PTFE and fresh PTFE, P‐PTFE and F‐PTFE) was prepared by a two‐step mechanical activation (MA) method. By introducing it into composite modified double base (CMDB) propellant, an attempt to improve the propellant ...
Shixiong Sun +3 more
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On the Burning Rate Characteristics of CMDB Propellants
Propellants, Explosives, Pyrotechnics, 1979AbstractThe object of this paper is to obtain expressions for the burning rate pressure exponent and the temperature sensitivity of AP‐based and HMX‐based CMDB propellants in terms of the respective physical constants on the basis of a recently developed model of combustion for CMDB propellants and to examine the effects, if any, on these two ...
V. Swaminathan, M. Soosai Marian
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An Investigation on Thermal Decomposition of DNTF‐CMDB Propellants
Propellants, Explosives, Pyrotechnics, 2007AbstractThe thermal decomposition of DNTF‐CMDB propellants was investigated by pressure differential scanning calorimetry (PDSC) and thermogravimetry (TG). The results show that there is only one decomposition peak on DSC curves, because the decomposition peak of DNTF cannot be separated from that of the NC/NG binder.
Wei Zheng +4 more
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Flame structures and burning rate characteristics of CMDB propellants
Symposium (International) on Combustion, 1977Flame structures and burning rate characteristics of composite modified double-base (CMDB) propellants are studied by photographic observations and temperature profile measurements of the combustion zones. The oxidizers studied for CMDB propellants were various particle sizes and concentrations of AP (ammonium perchlorate) and HMX (cyclotetramethylene ...
N. Kubota, T. Masamoto
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