Results 101 to 110 of about 49,027 (122)

An Investigation on Thermal Decomposition of DNTF‐CMDB Propellants

Propellants, Explosives, Pyrotechnics, 2007
AbstractThe 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, Jiangning Wang, Xiaoning Ren, Laying Zhang, Yanshui Zhou   +4 more
openaire   +1 more source

Flame structures and burning rate characteristics of CMDB propellants

Symposium (International) on Combustion, 1977
Flame 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
openaire   +1 more source

Influence of Cadmium Oxide on Thermal Hazard of AP-CMDB Propellants

Advanced Materials Research, 2015
The influence of cadmium oxide on the thermal decomposition behaviors of AP-CMDB propellants was studied by differential scanning calorimetry (DSC) and accelerating rate calorimetry (ARC). The test results show that the decomposition process of AP-CMDB can be divided into two stages.
Hao Nan Jia, Gui E Lu, Zhen Tao An, Jin Yong Jiang, Qiang Ge, Shao Guang Wang, Zhe Hu   +6 more
openaire   +1 more source

HTPB‐based polyurethanes for inhibition of composite‐modified double‐base (CMDB) propellants

Journal of Applied Polymer Science, 1997
Polyurethanes were synthesized by the reaction of hydroxy-terminated poly-butadiene (HTPB) and diisocyanates such as toluene diisocyanate (TDI), diphenyl-methane diisocyanate (MDI), hexamethylene diisocyanate (HMDI), and isophorone diisocyanate (IPDI).
D.C. Gupta, P.K. Divek Ar, V.K. Phadke
openaire   +2 more sources

Study on Comparative Performance of CL‐20/RDX‐based CMDB Propellants

Propellants, Explosives, Pyrotechnics, 2019
AbstractThe energy, combustion and combustion residues properties of composite modified double‐base (CMDB)propellants with CL‐20 were compared to those propellants with RDX. The energy characteristic of CL‐20/RDX‐CMDB propellants had also been calculated theoretically based on the principle of minimum free energy.
Jiangning Wang, Lilong Yang, Wei Zheng, Jun Zhang   +3 more
openaire   +1 more source

Evaluation of various stabilizers for Stability and Increased Life of CMDB Propellants

Propellants, Explosives, Pyrotechnics, 1989
AbstractThis study establishes superiority of resorcinol as stabilizer for CMDB propellants followed by RDME (resorcinol dimethylethcr) as compared to other resorcinol derivatives and that of CdO amongst metal oxides. The use of resorcinol and CdO combination in CMDB formulation results in higher E of 33 kca/mol and shelf life of 203 years as compared ...
S. N. Asthana, B. Y. Deshpande, H. Singh
openaire   +1 more source

Epoxy Resin as Inhibitor for Nitramine Containing Composite Modified Double Base (CMDB) Propellants

Journal of Macromolecular Science, Part A, 1995
Abstract Epoxy resin was investigated as inhibitor for nitramine containing Composite modified double base (CMDB) propellants. Inhibited CMDB propellants were statically (rocket firing under static condition) evaluated at ambient, hot (+60°C) and cold (-30°C) temperatures.
O. C. Gupta, M. V. Vaidya, S. S. Raomore, V. C. Phadke, P. K. Divekar   +4 more
openaire   +1 more source

Reaction mechanisms of ZrH2 in the combustion of a CMDB propellant

2017
Metal hydrides are regarded as a series of promising fuel for the solid rocket propellants. Their effects on the energetic and combustion performances of propellants are closely related to the combustion mechanisms. Here, we report a first attempt to determine the reaction mechanisms of ZrH2, a highdensity metal hydride, in the combustion of a double ...
YANG, Yanjing, ZHAO, Fengqi, YUAN, Zhifeng, YI, Jianhua, ZHANG, Jiankan, AN, Ting, XUAN, Chunlei   +6 more
openaire   +1 more source

Studies on thermal stability, autoignition and stabilizer depletion for shelf life of CMDB propellants

Journal of Hazardous Materials, 1989
Abstract This paper reports the results of thermal stability of composite modified double base propellants (CMDB) by using tests applicable for double base propellants (DBP) and shelf life estimation of CMDB propellants by application of the autoignition test and monitoring stabilizer depletion by high performance liquid chromatography (HPLC).
S.N. Asthana, C.N. Divekar, Haridwar Singh   +2 more
openaire   +1 more source

Effect of high energy materials on the thermal stability and shelf life of CMDB propellants

Journal of Hazardous Materials, 1990
Abstract The results of thermal stability tests indicate higher stability of cyclotrimethylene-trinitramine (RDX), pentaerythritol-tetranitrate (PETN) and their combined formulations with composite modified double base (CMDB) propellants than ammonium perchlorate (AP) containing CMDB propellants.
S.N. Asthana, R.B. Ghavate, Haridwar Singh   +2 more
openaire   +1 more source