1. Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zürich, Switzerland.
2. Computational Physics of Engineering Materials, Institute of Building Materials, Department of Civil, Environmental and Geomatic Engineering, ETH Zurich, Schafmattstrasse 6, CH-8093 Zürich, Switzerland