Dy-Mn-Si as a representative of family of 'Dy-Transition Metal-Si' systems: Its isothermal sections, empirical rProd. Type: FTPules and new rare-earth manganese silicides

New Sc2CoSi2-type R2MnSi2 and Hf3Ni2Si3-type R3Mn2Si3 phases were discovered for R=Gd, Tb, Ho-Tm.