Table 1: XRD data of unmilled free, unmilled cold pressed (CP), 30 h milled-free, 30 h milled CP and 30 h milled CP 400°C-annealed Co powder.

Material conditionSpace group and number PhasesLattice parameter (Å)
𝑎 𝑐

Unmilled powderP63/mmc no. 194HCP2.514.07
Unmilled CPP63/mmc no. 194HCP2.504.06
Milled powderFm-3m no. 225FCC3.80
Milled CPFm-3m no. 225FCC3.75
Milled CP annealedFm-3m no. 225FCC3.80