CSed powders

The XRD patterns of CSed powder synthesized with the optimum quantity of diluent and of CS-SPSed fractures are shown in Figure 4.5. The CS reaction did not self-sustain when excessive diluent was added due to too low adiabatic temperature (r j) < 1800 K, according to Munir and Holt [8]. Pure P-SiAlON with z value of 4 was not obtained by SPS due to the low purity and short z value of CSed powder. 

Pure P-SiAlONs were obtained through SPS, though the CSed powders were not pure P-SiAlON products. The bulk density was measured by the Archimedes principle, while theoretical density values were obtained from literature. The relative densities of the SPSed P-SiAlON with z= 1-3 were more than 99% of the... 

Figure 4.6 SEM images of (a) combustion- from CSed powders (SI z= 1 S2 z = 2 S3 ...

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