Results 51 to 60 of about 402 (183)

Probing the Curing Reaction of HTPB Propellant with Low-Field NMR

Aerospace
Hydroxyl-terminated polybutadiene (HTPB) propellants are widely used in aerospace applications owing to their excellent mechanical performance and storage stability, which are primarily governed by the crosslinked network formed during curing ...
Mengrui Yu, Heng Chang, Jinxiang Liu, Fei Wang, Wenhua Hu, Hua Zhang, Tianshuai Wang, Jiangbo Chen   +7 more
doaj   +1 more source

Comparison of burn rate and thermal decomposition of AP as oxidizer and PVC and HTPB as fuel binder based composite solid propellants

Defence Technology, 2019
In the present investigation an effort has been made to understand the thermal decomposition and burn rate characteristics of AP as oxidizer and PVC and HTPB as fuel binder in composite solid propellant.
A. Manash, P. Kumar
doaj   +1 more source

Coating of High Melting Explosive Particles by Nitrotriazolone to Formulate Composite Nanoparticles by Spray Flash Evaporation

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 11-12, Page 32-39, December 2025.
ABSTRACT The balance between performance and safety of high explosives is at the heart of the current studies, and new ways of combining safety and performance have hence been elaborated. This study focuses on a mixture of 3‐nitro‐1,2,4‐triazol‐5‐one (NTO) and octogen (high melting explosive [HMX]).
Maxime Blanchon, Anna K. Ott, Bastien Lallemand, Antoine Osmont, Denis Spitzer, Marc Comet   +5 more
wiley   +1 more source

Thermo‐Mechanical Evaluation of Novel Composite Propellant Formulations Based on Styrene‐Ethylene/Butylene‐Styrene Block Copolymer

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 11-12, Page 117-126, December 2025.
ABSTRACT Two novel composite propellant formulations have previously been produced from a binder consisting of the thermoplastic elastomer styrene‐ethylene/butylene‐styrene (SEBS) and a solid filler, either ammonium perchlorate (AP) or 1,3,5‐trinitro‐1,3,5‐triazinane (RDX).
Peter J. Wilkinson, Guillaume Kister, Philip P. Gill   +2 more
wiley   +1 more source

A Structural Integrity Perspective for the Assessment of Ageing in Composite Solid Propellants

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 10, Page 152-158, October 2025.
ABSTRACT Composite solid propellants (CSPs) are critical materials in the defence and aerospace industries, known for their complex mechanical behaviour and susceptibility to ageing. This study explores the application of Principal Component Analysis (PCA) to discriminate the ageing degradation of CSPs based on structural integrity parameters.
Mario Martínez, Raúl López, Jesús Rodríguez, Alicia Salazar   +3 more
wiley   +1 more source

Amine‐AlH3 Adducts as Energetic Materials for a New Generation of Solid Fuels

Chemistry – A European Journal, Volume 31, Issue 40, July 17, 2025.
New amine‐AlH₃ adducts offer a more environmentally friendly, high‐energy alternative to conventional rocket propellants, and exhibit ultra‐fast ignition. They can be synthesized by mechanochemical method under hydrogen pressure starting from aluminum metal directly or by wet chemical processes with AlH3.
Xiaoran Liu, Jochen Ortmeyer, Alexander Bodach, Hilke Petersen, Michael Felderhoff   +4 more
wiley   +1 more source

Investigations of the mechanical response of dummy HTPB propellant grain under ultrahigh acceleration overload conditions using onboard flight-test measurements

Defence Technology
In this paper, to study the mechanical responses of a solid propellant subjected to ultrahigh acceleration overload during the gun-launch process, specifically designed projectile flight tests with an onboard measurement system were performed.
Yiming Zhang, Ningfei Wang, Weihua Ma, Ran Wang, Long Bai, Yi Wu   +5 more
doaj   +1 more source

A Critical Review of Limitations and Challenges in Advancement of HNF as a Green Oxidizer for Composite Solid Propellant Formulations

Propellants, Explosives, Pyrotechnics, Volume 50, Issue 7, Page 11-30, July 2025.
ABSTRACT Hydrazinium nitroformate (HNF) is a chlorine‐free, high‐energy oxidizer with promising applications in green propulsion systems. This review examines the thermal decomposition, combustion kinetics, flame structure, and behavior of HNF, while critically evaluating the current body of literature.
Lakshay Bansal, Prakhar Jindal, Vineet Kumar Rathi   +2 more
wiley   +1 more source

Numerical study of cook-off temperature and ignition dynamics in high-energetic materials

Academia Engineering
This study presents an approach for predicting temperatures and ignition time during the cook-off process of solid propellants, with a focus on identifying potential hot spots and conduction losses.
Mukhtiar Ahmed, Yang Yang, Binguang Niu, Xiaoxing Liu   +3 more
doaj   +1 more source

Estudo da decomposição térmica de propelente sólido compósito de baixa emissão de fumaça Study of thermal decomposition of a smokelles propellant

Química Nova, 2008
The thermal decomposition of hydroxyl-terminated polybutadiene (HTPB)/ammonium nitrate (AN) based propellants, so called smokeless formulations, and raw materials were investigated by differential scanning calorimetry (DSC) and thermogravimetry (TG). The
Jony Andrade, Antonio Gonçalves Frutuoso, Koshun Iha, José Atílio Fritz Fidel Rocco, Eduardo M. Bezerra, Jivaldo do Rosário Matos, Maria Encarnación Vázquez Suárez-Iha   +6 more
doaj   +1 more source