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Abstract
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This investigation was undertaken to predict
the mass gain (MG) of cobalt electroless deposition (ED)
on ceramic SiC particles. Response surface methodology
(RSM) based on a full factorial design with three ED
parameters and 30 runs was used to conduct the experiments
and to establish a mathematical model by means of
Design-Expert software. Three ED parameters considered
were pH, bath temperature and ceramic particle morphology.
Analysis of variance was applied to validate the predicted
model. The results of confirmation analysis by
scanning electron microscopy (SEM) show that the
developed models are reasonably accurate. The pH is the
most effective parameter for the MG. Also, the highest
mass gain is obtained for the lowest pH, highest bath
temperatures and heat-treated SiC particles. In addition, the
developed model shows that the optimal parameters to get
a maximum value of mass gain are pH, bath temperature
and ceramic particle state of 8, 70 C and heat treatment,
respectively.
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