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Abstract:
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This work concerns the development of an innovative processing route to manufacture a new design of ceramics micro-heat exchanger. The manufacture is based principally on the Ceramic Injection Moulding process of the different elements of the micro-heat exchanger. Furthermore, the different elements are cofired in order to provide directly the part. The micro heat exchanger is characterised by a complex network of inner channels. The paper focuses on the alumina feedstock based on ultrafine alumina powders and on the conditions of injection, debinding and co-firing, developed essentially for this study. Moreover, the interfaces between the co-fired elements have been characterized by optical microscopy. This process may be applied to design complex and precise microstructures for mass produced micro heat exchangers, cold plates and micro reactors than can be used for various large scale applications in the field of energy and electronic cooling. |
