Ca3Co4O9 powders were prepared by a solid-state reaction. A mixture of Co(NO3).6H2O and CaCO₃ was stirred in reverse osmosis water for 40 min and subsequently dried for 24 h at 70 °C. Then, the dried powder was deagglomerated and calcined at 900 °C for 24 h in an air atmosphere. Quotas of this powder were used to produce ceramics using both the conventional sintering method and CSP to compare the properties of the ceramics obtained using both methods.