Results 21 to 30 of about 52,081 (256)

Application of Al/B/Fe2O3 Nano Thermite in Composite Solid Propellant

Bulletin of Chemical Reaction Engineering & Catalysis, 2016
Hydroxyl-terminated polybutadiene (HTPB) propellant were prepared with different content of Al/B/Fe2O3 nano thermite, and the mechanical, thermal and energetic performances were studied. Al/B/Fe2O3 nano thermite exhibited good compatibility with HTPB and
Jingke Deng, Guoping Li, Lianhua Shen, Yunjun Luo   +3 more
doaj   +1 more source

Evolution of structural damage of solid composite propellants under slow heating and effect on combustion characteristics

Journal of Materials Research and Technology, 2023
Composite propellants are used to fabricate solid motors for space vehicles. The fundamental factor that affects motor safety is the structural damage in the propellant owing to slow heating in an abnormal storage or service environment.
Jianxin Nie, Jiahao Liang, Haijun Zhang, Yu Zou, Qingjie Jiao, Yingjun Li, Xueyong Guo, Shi Yan, Yanli Zhu   +8 more
doaj   +1 more source

Burning Properties of Uncured HTPB Propellant

Journal of the Korean Society of Propulsion Engineers, 2016
ABSTRACT In this study, we examined the burning rate of the uncured pr opellant (with and without a curing agent application) in order to inspect the process of the HTPB solid propellant. The burning rate of the uncured propellant, that did not contain the curing agent, was approximately 9.7 mm/s at 1000 psi. In relation to the curing time, the burning
Nakhyun Kim, Jungeun Kim, Myungpyo Hong
openaire   +2 more sources

Burning Characteristics of Ammonium-Nitrate-Based Composite Propellants with a Hydroxyl-Terminated Polybutadiene/Polytetrahydrofuran Blend Binder

International Journal of Aerospace Engineering, 2012
Ammonium-nitrate-(AN-) based composite propellants prepared with a hydroxyl-terminated polybutadiene (HTPB)/polytetrahydrofuran (PTHF) blend binder have unique thermal decomposition characteristics.
Makoto Kohga, Tomoki Naya, Kayoko Okamoto   +2 more
doaj   +1 more source

Compressive mechanical properties of HTPB propellant at low temperatures and high strain rates

Results in Physics, 2017
To study the compressive mechanical properties of the hydroxyl-terminated polybutadiene (HTPB) propellant at high strain rates (700–1900/s) and low temperatures (−50 °C to 25 °C), we conducted a dynamic mechanical experiment using cylindrical specimens ...
Xiangdong Chen, Jianwei Lai, Xin-long Chang, Youhong Zhang, Lei Zhang, Chao Wang   +5 more
doaj   +1 more source

Effect of tangential swirl air inlet angle on the combustion efficiency of a hybrid powder-solid ramjet [PDF]

, 2019
A new ramjet configuration using powder and solid fuel as propellant is investigated, namely, hybrid powder-solid ramjet (HPSR). Boron particles were used as the powder in this study.
ANSYS Inc, Ao, Betelin, Cai, Chang, Chelaru, Chen, dawara, Gany, Gany, Glassman, Goroshin, Haijun Sun, Hu, Humberto Medina, Hussmann, Hussmann, Jung, Kalpakli, Kazaoka, King, Li, Li, Liang, Loftus, Magnussen, Meinköhn, Morsi, Musa, Musa, NASA, Natan, Nie, Pern, Pern, Povitsky, Rashkovskiy, Rodić, Rui Jia, Sandall, Sender, Shih, Shorr, Varghese, Wang, Xia, Xia, Xu, Yeh, Yihua Xu   +49 more
core   +1 more source

Strain-rate correlation of biaxial tension and compression mechanical properties of HTPB and NEPE propellants

AIP Advances, 2022
An effective biaxial tension and compression test method is proposed based on the shortcomings of current research for the mechanical properties of solid propellants under complex stress states.
Qizhou Wang, Guang Wang, Zhejun Wang, Hongfu Qiang, Xueren Wang, Shudi Pei   +5 more
doaj   +1 more source

Effect of hexanitroethane (HNE) and hydrazinium nitroformate (HNF) on energy characteristics of composite solid propellants

FirePhysChem, 2021
This work deals with energy performance calculate results of new solid composite propellants based on Hexanitroethane (HNE) and Hydrazinium nitroformate (HNF).
Li-nan Zhang, Qun-qing Lin, Ben-duan Cheng, Peng-cheng Wang, Ming Lu, Qiu-han Lin   +5 more
doaj   +1 more source

Research on the Aging Properties of HTPB Propellant under Vacuum

Journal of Physics: Conference Series, 2023
The space environment has high vacuum, rapid temperature alternations and other extreme conditions, which can affect the energy, ignition rate and ignition performance of solid propellants in the space environment.
Yuqing Tang, W. Liao, Hanyu Deng, Cheng Chen   +3 more
semanticscholar   +1 more source

Mechanical response of HTPB propellant grain under ultra-high overload

Journal of Physics: Conference Series, 2023
In this study, the mechanical response of HTPB propellant grain under ultra-high loads is investigated. The low, intermediate and high strain rate of uniaxial compression tastings (1.7×10−4~3×103s−1) of the hydroxyl terminated polybutadiene (HTPB ...
Yimin Zhang, Ning-fei Wang, Ran Wang, Xiaoxu Chen, Yi Wu, Jinfeng Dang, Xiaotao Tian   +6 more
semanticscholar   +1 more source