A master thesis what researched the visualization of phase change materials (PCMs) with augmented reality (AR) for different 3 different user groups. The user groups are researchers, maintenance and customers. The research question is "How does AR contribute to the understanding of the behavior of PCM for science, maintenance and customer groups?". With simulations in Comsol and an experiment the AR possibilities were validated. The AR gave insight in the behavior of PCM and was applicable for each group.