Abstract
The present study is concerned with the burnout process of the organic binders from green bodies of super hard material fabricated by the extrusion forging method. The green was debinded during heating from room temperature to about 700K under inert atmosphere. After removal of the binder during high heating rate process, inner cracks were observed in thick sections. These cracks were seemed to be related to the debinding operation itself. An efficient firing curve can be designed using the data obtained by the thermal analysis and the SEM observations of sample for the debinding process of super hard materials.
The fundamental data is thought to be useful to design the optimum firing curve without any crack formation, and to clarify the debinding mechanism of ceramics.
