Cite as: Guenther, R.; Hartig, C.; Anopuo, O.; Hort, N.; Bormann, R.: The Role of solutes for Grain Refinement by (SiC)p: Experiment and Theoritical Calculation. In: Pekguleryuz, M.; Neelameggham, N.; Beals, R.; Nyberg, E. (Ed.): Magnesium Technology 2008, TMS Annual Meeting & Exhibition. New Orleans, LA (USA). 2008. 95-99.