Are you an EPFL student looking for a semester project?
Work with us on data science and visualisation projects, and deploy your project as an app on top of Graph Search.
Polymer-derived ceramics are known for their resistance to high temperatures and harsh environments as well as property tunability and compatibility with various shaping techniques. We demonstrate here a new hierarchical micro-manufacturing process combining the advantages of casting and direct laser writing. The parts’ general shape is defined by a reusable silicon mold whereas individual freeform microfeatures such as a micro QR-code are implemented through the addition of sacrificial photoresin microstructures. An organopolysilazane-based formulation is cast and thermally converted into SiCN. Resulting parts are fully dense, have the microstructure imprinted, and exhibit high mechanical strength and tunable electrical properties.
Danick Briand, Ryan Mitchell van Dommelen, Rubaiyet Iftekharul Haque, Jaemin Kim
Jürgen Brugger, Lorenz Hagelüken