TY - JOUR T1 - Improving usual and dielectric properties of ceramic high voltage insulators JO - CerĂ¢mica A1 - Roula, A. A1 - Boudeghdegh, K. A1 - Boufafa, N. SN - 0366-6913 UL - 10.1590/S0366-69132009000200014 VL - 55 Y1 - 2009 PB - Brasil ER -