Effects of the composition of stainless steel / zirconium dioxide metal-ceramic composites on the material performance

Combining the properties of metals and ceramics is challenging, mostly due to differences in physical properties (e.g. thermal expansion) and the required processing conditions. Nonetheless, property profiles are achievable that neither pure component shows. Thus, new applications or improvements for existing ones may result. This work deals with the system 316L-ZrO2 and the influence of the composition on the material performance. A thorough investigation of composites over the complete range of composition was carried out. The transition from particle composites to interpenetrating phase composites (IPCs) on both sides of the composition window could be correlated to percolation theory and the change of microstructure and material properties (hardness, compression and bending behaviour) was analysed. Some properties changed erratically, others more steadily, leading to interesting property combinations. Our study furthermore showed the possibility to use those composites in two- and three-component PIM parts, bearing great potential for positive substance joining during sintering.