Results 21 to 30 of about 1,005 (167)

Experimental and simulative thermal stability study of HTPE solid propellants in different scales

Case Studies in Thermal Engineering, 2021
The hydroxyl-terminated polyether (HTPE) solid propellants are widely recognized as promising alternatives for hydroxyl-terminated polybutadiene (HTPB) propellants due to their compliance with insensitive munition characteristics of composite solid ...
Xu Wang, Chenxi Pei, Feiyang Xu, Xingliang Wu, Huabo Li, Nian Yang, Dabin Liu, Sen Xu   +7 more
doaj   +1 more source

Ferrocene-fullerene dyad as a novel burn rate modifier for propellants

Energetic Materials Frontiers
The burn rate of composite rocket propellants serves as a critical ballistic parameter in the construction of a rocket engine. Due to their large surface areas, carbon-based materials such as carbon nanotubes, graphene, and fullerene have demonstrated ...
Shrutika Sriramrao, Parveen Raman, Akash Dhas, Shaibal Banerjee   +3 more
doaj   +1 more source

Polyurethanes Based on Environmentally Friendly Polyols as a Promising Alternative to HTPB Binder for Composite Propellant Rockets

Proceedings, 2023
Composite propellants used in solid-fuel rockets commonly consists of an oxidizer, the most used being ammonium perchlorate, fuels such as powdered aluminum, compounds that control the burn rate (catalysts or inhibitors), and various other additives [...]
Sorin-Viorel Dolana, Anamaria Zaharia, Tanţa-Verona Iordache, Andrei Sârbu, Celina-Maria Damian, Traian Rotariu, Anita-Laura Chiriac, Ana-Mihaela Gavrilă, Anton Ficai   +8 more
doaj   +1 more source

Research progress in data-driven constitutive modeling of composite solid propellants

AIP Advances
With the continuous advancement of technology, composite solid propellants play an increasingly widespread and crucial role in fields such as aerospace and military applications.
Bin Yuan, Hongfu Qiang, Chunguo Yue
doaj   +1 more source

Cu–Co–O nano-catalysts as a burn rate modifier for composite solid propellants

Defence Technology, 2016
Nano-catalysts containing copper–cobalt oxides (Cu–Co–O) have been synthesized by the citric acid (CA) complexing method. Copper (II) nitrate and Cobalt (II) nitrate were employed in different molar ratios as the starting reactants to prepare three types
D. Chaitanya Kumar Rao, Narendra Yadav, Puran Chandra Joshi   +2 more
doaj   +1 more source

Properties of high-energy propellants based on oxygen-enriched thermoplastic elastomer binders

FirePhysChem
Composite propellants are widely used in applications ranging from gas generators and small rockets to large rocket systems in space programs. This study presents a novel thermoplastic elastomer (TPE) binder system based on oxygen-enriched polyether ...
Vladica S Bozic
doaj   +1 more source

Preliminary research of composite rocket propellants with hexogen and titanium oxide powder [PDF]

Scientific Technical Review, 2018
Composite solid propellants based on ammonium perchlorate/hydroxyl-terminated polybutadiene/isophorone dyisocyanate including two levels of hexogen (RDX) are presented in this paper. The mass of RDX increased in relation to oxidant, with constant bimodal
Rodić Vesna, Bogosavljević Marica, Milojković Aleksandar, Mijatov Slavko   +3 more
doaj  

Preliminary research of composite rocket propellants including octogene [PDF]

Scientific Technical Review, 2017
Composite solid propellants based on ammonium perchlorate/hydroxyterminated polybutadiene/isophorone dyisocyanate including different contents of octogene (HMX) have been represented in this paper.
Rodić Vesna, Bogosavljević Marica, Milojković Aleksandar, Brzić Saša, Fidanovski Bojana, Gligorijević Nikola   +5 more
doaj  

Constitutive Model Based on Stress Relaxation for Composite Modified Double-Base Propellants and Master Curve of Relaxation Modulus

Aerospace
This study investigates the constitutive model and relaxation modulus master curve of composite modified double-base (CMDB) propellants through uniaxial constant-rate tensile tests and stress relaxation tests.
Yao Li, Jinsheng Xu, Changsheng Zhou, Xiong Chen, Xiumin Yang   +4 more
doaj   +1 more source

Combustion catalysis of high-nitrogen energetic ferrocene derivatives on hydroxyl-terminated polybutadiene-based composite propellants

Applications in Energy and Combustion Science
Conventional ferrocene derivatives exhibit limited efficacy in regulating the combustion of composite propellants, and the underlying combustion mechanism remains unclear.
Liping Jiang, Xiaolong Fu, Zhihong Han, Xitong Zhao, Longjin Du, Haitao Huang, Ming Lei, Jizhen Li   +7 more
doaj   +1 more source