EFFECTS OF A BOUNDARY NODE ON GRAIN-BOUNDARY SLIDING AND INTERGRANULAR FRACTURE IN Cu-9at.%Al TRICRYSTALS S. MIURA, T. OKADA, S. ONAKA et S. HASHIMOTO J. Phys. Colloques, 51 C1 (1990) C1-587-C1-592 DOI: 10.1051/jphyscol:1990192