| The objective of this study was to evaluate the effects of different process parameters on the shrinkage and tensile properties of stainless steel and the effect on the conductivity of injection molded graphite. Different percentages of graphite/stainless steel powder and binder were mixed using a premixer. The mixture was then grinded to convert it into small granules; these granules were then injection molded into flexural and tensile bars. The injection molded flexural and tensile bars were then debinded at different times and temperatures. Then the shrinkage, tensile and conductivity tests were conducted on the bars and the shrinkage, modulus, and volume resistance was calculated for each of the samples. The effect of powder/binder concentrations, debinding times, and debinding temperatures were studied on the shrinkage, modulus and conductivity of the samples. It was seen that, as the powder concentration was increased in the graphite sample, the volume resistance of the sample decreased, and in case of stainless steel samples the shrinkage and the tensile properties increased. It was also seen that with the increase in debinding time and temperature there was a considerable decrease in the volume resistance, shrinkage, and the tensile properties. |
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