An electric contact material of silver-iron oxide was prepared from mixed silver-iron electrolytic powder and mixed Ag-Fe
2O
3-Fe
3O
4 precipitates by powder metallurgical process. The compact was sintered in the atmosphere of mixed CO-CO
2 gas and the sintering behaviour of the silver-iron oxide compact was investigated by means of X-ray diffraction analysis and measurement of electrical properties of the sintered specimens. As the result, the optimum compacting pressure, gas composition, sintering temperature and sintering time for electrolytic powder system were determined respectively as follows: Below 1 t/cm
2, \dfracCOCO+CO
2 30∼35%, 850∼890°C, 3/4 to 1 hour re-pressin at 5 t/cm
2 followed by 3 hour repressing, for precipitate powder system; about 4 t/cm
2, \dfracCOCO+CO
2 50∼60%, 850∼890°C, 3/4 t/hour re-pressing at 5 t/cm
2 followed by 1\dfrac12 hour re-pressing, for precipitate system.
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