In this research, SiC/Feldspar composite used to exam to see the potential of
the material to absorb heat and save the energy used so it was tested to a few different
compositions (x = 10,20, 30, 40 and 50wt%) of feldspar and the best composition was
being tested with the microwave absorption and porosity also density measurement.
From the replication process, it can show that whether the density and porosity
measurement is influenced with the microwave absorption factor or vice versa. Finally,
each of the process progress, the XRD technique will be used to identify the phase
identification. Besides, optical microscope also be used to identify the microstructure
of the product. As a result, it shown that the SiC-20wt% feldspar composite was good
composition compared to others after the microwave absorption technique and it
shown that the bulk density of SiC-30wt% feldspar composite was the lighter sample
recorded was 0.048 g/cm3. Besides, for apparent porosity, SiC-20wt% feldspar
composite was the lower amount recorded which was 21.8%. Based on the result in
this research, it can be said that the SiC-20wt% feldspar composite susceptor by using
slip casted method was the best product