In the framework of the European project “PowderReg”, the team of the university of Saarland is dealing with granular matter flow research. In the first year of the project we focused on developing and testing measurement techniques for the rheology of granular matter, and on setting up related experiments. For our scientific purposes, we use a standard rheometer in a cup and plate configuration to research granular matter samples with large amplitude oscillatory shear (LAOS). Our first results were presented at the Rheology 360 conference in Luxembourg (19.03.2018). During the first year, we also began to implement the first tube rheometer set-up.
Fruitful collaboration within academic and industrial world helped us develop a work plan for 2018 and the following years. We discussed with Prof. Caceres (Balseiro Institute Argentina), summing-up the previous work carried out on powder flow to develop a theory on granular gases related to the van der Walls approach, and considering the necessity to find a suitable set up which could reconcile research and experiments. We carried out a discussion with Dr. Pedro Pury (FAMAF, Argentina) about granular matter rheology for studying the thermodynamics of the tube Rheometer. We also discussed about additional experiments with the tube rheometer in order to measure the dissipated energy and estimate the configurational entropy.
We took contact with the company CERATIZIT, Luxembourg (www.ceratizit.com), and had three meeting in November and December (one in their industrial plant and two in our laboratories) focusing on the different stages of the metallurgical process they carry on to produce cutting tools. We structured our collaboration inviting the company to join the Committee for Innovation and Impact in order to further develop a cooperation about tasks related to innovation in powder processing technologies.