Abstract
Phase transformation has been studied of smeltable seal and charge at sintering. The mechanism of interaction between charge and an item to be sintered is found. It is demonstrated that titanium hydride decomposes between 500-650 deg C and titanium both introduced to charge as powder and that formed from the hydride decomposition partially oxidizes. Rutile (titanium dioxide) dominates over other oxidation products. Areas next to a workpiece to be sintered are enriched in nickel and titanium. There is a slight dissolution of copper and tin in aluminium oxide grains.