Abstract
The sintering shrinkage kinetics of metal injection molded copper brown parts was investigated at three different heating rates up to 1050°C using a high temperature pushrod dilatometer. Non-isothermal and isothermal measurements were simultaneously used in the multivariate non-linear regression analysis to determine the kinetic reaction parameters. A four-step kinetic model was established using “Jander” diffusion equation. Using the rate control sintering, the temperature–time profile for the predefined shrinkage was achieved with respect to time saving. The temperature–time profile was confirmed by performing an experimental run in the production furnace. The metallographic analysis of the microstructure and determination of the sintered density revealed the validation of calculated temperature–time profile.
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