Results 111 to 120 of about 1,905,870 (344)

Advances in the development and characterization of combustible cartridge cases and propellants: Preparation, performance, and future prospects

Reviews on Advanced Materials Science
This study presents a comprehensive analysis of combustible cartridge cases (CCCs) and propellants with a focus on their preparation methods, characterization techniques, and application in modern weaponry.
Wu Mengde, Xiao Zhenggang
doaj   +1 more source

Thermal decomposition kinetics and storage life prediction of nitramine propellants with different energetic plasticizers based on model-fitting method

Case Studies in Thermal Engineering
The research on the thermal decomposition of propellant is critical to determining its safe storage life. The thermogravimetry (TG) testing of nitramine propellants plasticized by nitroglycerin (NG), glycidyl azide polymer (GAP), 2,2-dinitropropanol ...
You Fu, Zhitao Liu, Bin Xu, Feiyun Chen, Xiaoan Wei, Yiqiang Long, Xin Liao   +6 more
doaj   +1 more source

The University of Arizona program in solid propellants [PDF]

The University of Arizona program is aimed at introducing scientific rigor to the predictability and quality assurance of composite solid propellants. Two separate approaches are followed: to use the modern analytical techniques to experimentally study ...
Ramohalli, Kumar
core   +1 more source

Photochemical Fuel Carrier Molecules for Robotic Embodied Energy

Advanced Materials, EarlyView.
We designed a novel fuel carrier photoresponsive molecule for on‐demand energy storage and release. Carrier molecules undergo bond scission under UV light to release chemical fuel and locally generate propulsive Marangoni flows. We demonstrate this photochemical embodied energy strategy in small‐scale robots and active matter systems, enabling ...
Chuqi Huang, Songah Jeong, Ji Woo Kim, Kanyarat Mantala, Zenghao Zhang, Hyungwoo Kim, Abdon Pena‐Francesch   +6 more
wiley   +1 more source

Combustion and mechanical properties enhancement strategy based on stearic acid surface activated boron powders

Scientific Reports
Boric acid and other impurities on the surface of boron (B) particles can interact with hydroxyl-terminated polybutadiene (HTPB), weakening the mechanical properties and energy release efficiency of boron-based solid rocket propellants.
Jiaxin Lu, Chong Chen, Bobo Zhang, Kang Niu, Fei Xiao, Taixin Liang   +5 more
doaj   +1 more source

Evaluation of UV-Curable Solid Rocket Propellants’ Properties for Advanced 3D Printing Technologies

Applied Sciences
Challenges in the traditional cast-and-cure manufacturing of composite solid propellants, such as the use of mandrels and the toxicity of curing agents, are being addressed through new propellant formulations and additive manufacturing techniques. Within
Filippo Masseni, Giacomo Tetti, Alessandra Zumbo, Camilla Noé, Giovanni Polizzi, Leonardo Stumpo, Andrea Ferrero, Dario Pastrone   +7 more
doaj   +1 more source

Low‐Dimensional MOF Nanoarchitectonics: Progress in MOF‐2D Material Hybrid Architectures for Energy Conversion and Storage

Advanced Materials, EarlyView.
This review highlights the integration of metal‐organic frameworks (MOFs) and two‐dimensional (2D) materials through dimensional interface engineering. By addressing intrinsic limitations like poor conductivity and agglomeration, these hybrid architectures optimize interfacial charge and mass transport.
Prashant Dubey, Norman C.‐R. Chen, Xiangyang Liu, Yongqi Yin, Keisuke Shirasaki, Kevin C.‐W. Wu, Yingji Zhao, Yusuke Yamauchi   +7 more
wiley   +1 more source

The regulation of ferrocene-based catalysts on heat transfer in high-pressure combustion of ammonium perchlorate/hydroxyl-terminated polybutadiene/aluminum composite propellants

Defence Technology
The regulation of the burning rate pressure exponent for the ammonium perchlorate/hydroxyl-terminated polybutadiene/aluminum (AP/HTPB/Al) composite propellants under high pressures is a crucial step for its application in high-pressure solid rocket ...
Jinchao Han, Songqi Hu, Linlin Liu
doaj   +1 more source

Alternate propellants for the space shuttle solid rocket booster motors [PDF]

As part of the Shuttle Exhaust Effects Panel (SEEP) program for fiscal year 1973, a limited study was performed to determine the feasibility of minimizing the environmental impact associated with the operation of the solid rocket booster motors (SRBMs ...

core   +1 more source

An Atomic‐Level Bimetallic MOF Platform Overcoming the Stability‐Performance Tradeoff for Laser Propulsion

Advanced Materials, EarlyView.
This work introduces an atomic‐level engineered bimetallic MOF Platform that resolves the inherent trade‐off between environmental stability and propulsion efficiency. By integrating robust Fe‐O bonds for hydrolysis resistance and enabling d‐orbital charge transfer (Fe3+→Cu2+) for enhanced photothermal conversion, the design achieves a highly durable ...
Senlin Rao, Gang Tang, Shizhuo Zhang, Gary J. Cheng   +3 more
wiley   +1 more source