Paper Title:

The Analysis and Design of Microchannel Reactors

Periodical Advanced Materials Research (Volumes 15 - 17)
Main Theme THERMEC 2006 Supplement
Edited by T. Chandra, K. Tsuzaki, M. Militzer and C. Ravindran
Pages 321-326
DOI 10.4028/www.scientific.net/AMR.15-17.321
Citation C.A. Bellemare-Davis et al., 2006, Advanced Materials Research, 15-17, 321
Online since February, 2006
Authors C.A. Bellemare-Davis, K. Karan, J.G. Pharoah, G. Zak
Keywords Aluminum Alloy, Laser Ablation, Micro Machining, Microchannel Reactor, Microreformer
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Abstract

This investigation considers the development of microchannel reactors with catalystcoated walls for fuel-processing applications. In particular, the focus is to study the possibility of direct etching of microchannels into aluminum and alumina using a solid-state UV laser. Microchannels of a scale between 10μm-200μm across and 10μm-100μm have been ablated into aluminum and alumina bases. It was found that single scans resulted in narrow channels (20μm- 30μm in width) with shapes described by a Gaussian-like distribution. Multiple scans allowed fabrication of channels with a larger width, but of a similar depth. The surface quality was observed to be quite uneven, with roughness on the order of 1μm-2μm.