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Matrix of 10 × 10 addressed solid propellant microthrusters: Review of the technologies

Rossi, Carole and Briand, Danick and Dumonteuil, Maxime and Camps, Thierry and Pham, Phuong Quyên and de Rooij, Nicolaas F. (2006) Matrix of 10 × 10 addressed solid propellant microthrusters: Review of the technologies. Sensors and Actuators A: Physical, 126 (1). 241 - 252.

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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 × 1.5 mm thrusters on 576 mm2. Nozzles’ throats are 250 μm and 500 μm. 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 0.3–2.3 mN depending of the micronozzle dimension.

Item Type:Article
Uncontrolled Keywords:Electrical addressing
Subjects:Analytical Science > Nanotechnology for sensing and actuating
ID Code:4696
Deposited By:SPI
Deposited On:08 Apr 2009 14:10
Last Modified:08 Apr 2009 14:10

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