Novel forming of single and multiple ceramic micro-channels

This paper reports a cost-effective processing route for forming micrometre-size channels containing multiple exits/entries. An alumina suspension was electrosprayed in the stable cone-jet mode and the fine ceramic droplets generated were deposited on an organic fibre, which was pre-shaped to the architecture of the micro-channel(s) required. The coated structure was heated to 1400 °C to pyrolyse the fibre and create the ceramic micro-channel(s).

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