Concept

Hypergolic propellant

Related publications (9)

Re-entry analysis of critical components and materials for design-for-demise techniques

Pénélope Leyland, Stefano Mischler, Seong-Hyeon Park

The concern caused by the rising population of space debris has increased. One of the recommended mitigation measures is the safe re-entry disposal either in a controlled or uncontrolled manner. Performing a controlled re-entry, where the spacecraft is gui ...

2021

Highly dispersed cobalt oxides nanoparticles on activated carbon fibres as efficient structured catalysts for the transfer hydrogenation of m-nitrostyrene

Paul Joseph Dyson, Lioubov Kiwi, Oliver Anthony Beswick, Alexander Parastaev

The facile preparation of structured catalysts featuring highly-dispersed non-precious metal (Fe, Ni, Co) oxide nanoparticles stabilized within a super-microporous network of activated carbon fibres (ACF) is described. The catalyst morphology was controlle ...

Elsevier Science Bv2017

Comparing Direct and Indirect Thrust Measurements from Passively Fed and Highly Ionic Electrospray Thrusters

Herbert Shea, Simon Dandavino, Daniel George Courtney

Highly ionic beams of several hundred microampere per squared centimeter have been measured from porous glass ionic liquid electrospray sources fabricated using a conventional mill. The thrust output from three prototype devices, two emitting the ionic liq ...

American Institute of Aeronautics and Astronautics2016

Iron oxide nanoparticles supported on activated carbon fibers catalyze chemoselective reduction of nitroarenes under mild conditions

Lioubov Kiwi, Duncan Thomas Lindsay Alexander, Oliver Anthony Beswick

Highly dispersed iron oxide (Fe2O3) nanoparticles (NPs) have been immobilized on structured supports of activated carbon fibers (ACF). Systematic catalyst characterizations suggest that ACF-based catalysts remain ultra-microporous after Fe2O3 NPs (similar ...

Elsevier Science Bv2015

Microfabricated Electrospray Thrusters for a Modular Spacecraft Propulsion System

Simon Dandavino

With the growing capabilities of miniature components and systems, scientific and exploration missions making use of small spacecraft (

EPFL2014

PyroMEMS: Improved Fabrication Methods and Ignition Reliability

David de Koninck

Generating large force/displacement actuators at the millimeter and sub-millimeter scales remains an important challenge for microsystems engineers. One promising solution is to integrate high-energy density solid propellant fuels in microsystems (pyroMEMS ...

EPFL2012

Ignition and Combustion Behavior in Solid Propellant Microsystems Using Joule-Effect Igniters

Nico de Rooij, Danick Briand, Volker Gass, David de Koninck

A study of solid propellant ignition and combustion of potassium dinitrobenzofuroxanate in Joule-heating pyrotechnical microelectromechanical systems igniters is carried out using a high-speed framing camera. The effect of igniter geometry, propellant form ...

2011

Large Deformation Balloon Micro-Actuator Based on Pyrotechnics on Chip

Nico de Rooij, Danick Briand, Herbert Shea, Samuel Rosset

This communication presents the modeling and the first demonstration of very large deformation balloon actuators based on pyrotechnics on chip. The gas and pressure generated by the combustion of a solid propellant stored in a micromachined cavity lead to ...

IEEE2008

Hydrogénation sélective du 2-butyne-1,4-diol avec des catalyseurs de palladium supportés sur des matériaux filamenteux structurés

Eric Joannet

The principal objective of this thesis is the development of a palladium catalyst supported on woven fabrics of activated carbon fibers (ACF) for the reactions of hydrogenations in liquid phase and the design of multiphase reactors using the characteristic ...

EPFL2005

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