Abstract
Ultra high temperature zirconium carbide ceramic powder was prepared using a low cost technique using zirconium isopropoxide and phenolic resin. The effect of monomer feed ratio, heating rate and temperature on the nature and properties of the ceramics obtained were studied in detail. The samples were heat treated at two different temperatures using different heating rates and the ceramics obtained were characterised using XRD, SEM, TGA and particle size. The SEM images showed that the nature of particles obtained from both the systems is different. XRD confirmed complete ceramic conversion at 1650 °C whereas at 1600 °C, minor peaks for ZrO2 were present. The crystallite size of both the samples was well below 35 nm.
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