Correlation Between Intrinsic Microstructure and Piezoresistivity in a SiOC Polymer-Derived Ceramic. - Toma, Liviu; Kleebe, Hans-Joachim; Müller, Mathis M.; Janssen, Enrico; Riedel, Ralf; Melz, Tobias; Hanselka, Holger; Colombo, P. (Journal of the American Ceramic Society, 2012)