TY - JOUR T1 - Characterization of Si3N4 powders in aqueous dispersions JO - CerĂ¢mica A1 - Castanho, S. Mello A1 - Moreno, R. SN - 0366-6913 UL - 10.1590/S0366-69131998000400006 VL - 44 Y1 - 1998 PB - Brasil ER -