Results 81 to 90 of about 10,730 (314)
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 +6 more
wiley +1 more source
A nonlinear viscoelastic constitutive model with damage and experimental validation for composite solid propellant. [PDF]
Sci Rep, 2023 Li H, Xu JS, Chen X, Zhang JF, Li J.
europepmc +1 more source
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 +3 more
wiley +1 more source
Advanced Materials Interfaces, EarlyView.A near‐infrared photosensitizer that facilitates efficient solid‐state photon upconversion by recycling triplets formed within a fullerene‐based donor–acceptor bulk‐heterojunction system is demonstrated. Spectroscopic investigations reveal that the energy of photogenerated charge transfer states of triplet character (3CT) is subsequently transferred to
Maciej Klein +4 more
wiley +1 more source
Propelente sólido compósito polibutadiênico: I- influência do agente de ligação
Química Nova, 2002 In the Brazilian Complete Spacial Mission, the research of Vehicle Satellite Launcher is important. The solid propellant composite used in this vehicle is made with ammonium perchlorate, aluminiun powder and hydroxy terminated polibutadiene resin. In the
Sciamareli Jairo +3 more
doaj
Applied Rheology, 2017 Visco-plasticity characterized by yield stress is an important rheological property of composite propellant suspensions. The yield stress along with viscosity affects various unit operations in propellant processing as well as the quality of final ...
Dombe Ganesh +4 more
doaj +1 more source
On the history of the development of solid-propellant rockets in the Soviet Union [PDF]
Pre-World War II Soviet solid-propellant rocket technology is reviewed. Research and development regarding solid composite preparations of pyroxyline TNT powder is described, as well as early work on rocket loading calculations, problems of flight ...
Pobedonostsev, Y. A.
core +1 more source
Multiscale Acoustic Bubble Actuators Using Bioinspired Liquid‐Repellent Microstructures
Advanced Materials Technologies, EarlyView.The article presents multiscale acoustic bubble actuators using bioinspired liquid‐repellent microstructures, enabling programmable trapping, pumping, mixing, and precise flow control. Mimicking springtail microstructures, these scalable actuators (200 µm–1 mm) offer multifunctionality in all‐in‐one devices, letter‐shaped arrays, and 3D cube ...
Cem Balda Dayan +8 more
wiley +1 more source
Journal of Aerospace Technology and Management, 2012 Rockets are powered by composite solid propellant, which is a heterogeneous system consisting of solid oxidizer and metallic fuel dispersed in a polymeric fuel binder matrix.
Praveen Prakash Singh +5 more
doaj
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 +3 more
doaj +1 more source