Table 5: Crushing strength and effective density of MgO added CaMnO3-δ materials.

NotationMolar compositionSintering temperatureCrushing strengthEffective density
(°C)(N)(kg/ )

5.6% MgOCaMn0.8Mg0.2O311000.41001.2
12000.71238.7
13001.31704.9

2.7% MgOCaMn0.9Mg0.1O311000.31041.3
12000.61437.6
13001.42254.6