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Sensors 2010, 10(1), 167-175; doi:10.3390/s100100167

Microfabrication of Microchannels for Fuel Cell Plates

Department of Mechanical Engineering, University of Incheon, Incheon 402-749, Korea
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Author to whom correspondence should be addressed.
Received: 21 October 2009 / Revised: 14 December 2009 / Accepted: 22 December 2009 / Published: 28 December 2009
(This article belongs to the Special Issue Modeling, Testing and Reliability Issues in MEMS Engineering - 2009)
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Abstract

Portable electronic devices such as notebook computers, PDAs, cellular phones, etc., are being widely used, and they increasingly need cheap, efficient, and lightweight power sources. Fuel cells have been proposed as possible power sources to address issues that involve energy production and the environment. In particular, a small type of fuel-cell system is known to be suitable for portable electronic devices. The development of micro fuel cell systems can be achieved by the application of microchannel technology. In this study, the conventional method of chemical etching and the mechanical machining method of micro end milling were used for the microfabrication of microchannel for fuel cell separators. The two methods were compared in terms of their performance in the fabrication with regards to dimensional errors, flatness, straightness, and surface roughness. Following microchannel fabrication, the powder blasting technique is introduced to improve the coating performance of the catalyst on the surface of the microchannel. Experimental results show that end milling can remarkably increase the fabrication performance and that surface treatment by powder blasting can improve the performance of catalyst coating. View Full-Text
Keywords: fuel cell separator; microchannel; microfabrication; powder blasting fuel cell separator; microchannel; microfabrication; powder blasting
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Jang, H.S.; Park, D.S. Microfabrication of Microchannels for Fuel Cell Plates. Sensors 2010, 10, 167-175.

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