Different proportions of BF12 (aver

Different proportions of BF12 (average grain size of ~2 mm) and LMO (average grain size of ~10 mm) were weighed and mixed for 24 h using a variable speed ball mill. The resulting powders weresieved and mixed again using a pestle and mortar with 10e20 wt.% water. The wet powder was placed in either a 30  30 mm rectangular or 20 mm diameter cylindrical die applying 55e70 MPa pressure at 120 C for 10e40 min to achieve densification. The pellets were left in a dry furnace at 120 C for 24 h. The density of synthesised pellets calculated based on the geometry of the pellets and compared to theoretical values are listed in Table 1.