E. Kartini R&D Center for Materials Science and Technology, BATAN Kawasan Puspiptek Serpong, Tangerang 15314 Indonesia
S. Nikmatin Graduate Program for Material Science, University of Indonesia Jl Salemba 4, Jakarta Indonesia
S. Suminta R&D Center for Materials Science and Technology, BATAN Kawasan Puspiptek Serpong, Tangerang 15314 Indonesia
A. Handayani R&D Center for Materials Science and Technology, BATAN Kawasan Puspiptek Serpong, Tangerang 15314 Indonesia