The two component Ceramic Injection Moulding (CIM) –  known from two-coloured plastic parts – has been developed as a low cost and large series manufacturing technique for production of advanced complex shaped ceramic components for automotive and/or railway applications offering a high degree of structural and functional integrity. This manufacturing technique allows production of novel components with complex geometries within tight tolerances, short processing times, high degree of functionality and longer life cycles by combining two ceramic materials with different properties without additional joining steps.
The task required: adaptation of powder and powder blends properties (in regard to improved flowability); tailoring of ceramic feedstock properties (considering adjustment of simultaneous shrinking behaviour of couples of feedstocks during co-debinding and co-sintering); tool design; development of environmental-friendly debinding process of co-injected feedstocks; characterisation of green as well as sintered parts (including non-destructive testing) and –  last but not least –  implementation of simulation techniques of mould filling for a more flexible and cost-saving production.

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