Struktur Mikro dan Konduktivitas Listrik Keramik Cordierite dengan Penambahan Magnesium Oksida (0, 10, 15 wt %) Berbasis Silika Sekam Padi
Abstract: Research was
conducted to determine the effect of magnesium oxide 0, 10, and 15wt% to the
microstructure and electrical conductivity of cordierite. Cordierite was made
by commercial MgO and alumina and silica from rice husk which is extracted by
sol-gel method. Synthesis of cordierite was done with solid state reaction
method and sintering at 1250ºC for 3 hours. Microstructure cordierite analyzed
by SEM/EDS, while the electrical conductivity was analyzed using LCR meter, as
well as physical test include its density, porosity and shrinkage. The results
showed that the addition of MgO has reduced density, and shrinkage of
cordierite and increase porosity. Microstructure cordierite with the addition
of MgO indicated that sample with a lot of pores and their agglomeration.
Conductivity values decreased with the addition of 10% MgO and increased at 15%
MgO.
Penulis: Ade Lia Tristiana,
Simon Sembiring, Wasinton Simanjuntak
Kode Jurnal: jpfisikadd170099
