PengaruhPenambahan Alumina (0 dan 10wt%) Terhadap Karakteristik Termal (DTA-TGA) dan Konduktivitas Termal Bahan Keramik Cordierite Berbasis Silika Sekam Padi
Abstract: This study was
carried out to investigate the effect ofalumina on the physicalcharacteristics,
microstructure, andelectrical conductivity of cordierite. Silica obtained from
rice husk through sol-gel method, while alumina and magnesium were obtained
from Sigma-Aldrich. Cordierite was synthesizedbythe solid state method and
sintered at1200°C. The measurement results revealed that the addition of
alumina on cordierite reduceddensity and increasedporosity. The Differensial
Thermal Analysis (DTA) at 694oC for C1 and 649,9oC for C2showed that there
iscristobalite phase of rice husk and spinel phase has also been established.
The results of the thermal conductivity C2 is high at 12.97 W/mKbecause a
sample is homogeneous.
Penulis: Nesya Tamalia, Simon
Sembiring, Wasinton Simanjuntak
Kode Jurnal: jpfisikadd170086
