Rossi, Carole and Briand, Danick and Dumonteuil, Maxime and Camps, Thierry and Pham, Phuong QuyÃªn and de Rooij, Nicolaas F. (2006) Matrix of 10Â Ã—Â 10 addressed solid propellant microthrusters: Review of the technologies. Sensors and Actuators A: Physical, 126 (1). 241 - 252.
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Official URL: http://www.sciencedirect.com/science/article/B6THG...
An EC funded MicroPyros project has permitted to develop the technologies to fabricate, assemble and command solid propellant microthrusters arrays for thrusts of a few of milli Newtons The prototype built for space application has 100 individually addressed 1.5 mm Ã— 1.5 mm thrusters on 576 mm2. Nozzlesâ€™ throats are 250 Î¼m and 500 Î¼m. This paper reviews the prototype structure and details the final processes for the fabrication and assembling. This paper presents also a new addressing technology based on polysilicon threshold elements used for the addressing and heating of each thruster in the array. With polysilicon threshold element, ignition success is of 100% with an input power of 250 mW using a zirconium perchlorate potassium (ZPP) material. Then, the combustion of a glycidyle azide polymer (GAP) is sustained in the chamber and generate thrusts in the range of 0.3â€“2.3 mN depending of the micronozzle dimension.
|Uncontrolled Keywords:||MEMS; Microthruster; Microfabrication; Electrical addressing|
|Subjects:||Analytical Science > Nanotechnology for sensing and actuating|
|Deposited On:||30 Jun 2009 16:26|
|Last Modified:||30 Jun 2009 16:26|
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