Ceramic matrix composites are a class of advanced materials with significant potential for various industrial and energy applications. As these sectors push for greater efficiency, leading to higher operational temperatures and, consequently, a need for materials capable of withstanding such extreme conditions. The exceptional properties of CMCs make them ideal for use in such environments where other materials cannot perform reliably. This thesis investigates a strategy for the realization of joints between advanced oxide matrix composites (CMCs) by using a commercial vinyl functionalized polysilazane, Durazane 1800, categorized as a precursor for polymer-derived ceramics (PDCs). The CMCs involved in the study were supplied by the University of Bayreuth, Germany, and consisted in Nextel 610 alumina fibers within an alumina-zirconia matrix.