Tego Magnan powder grain size

Fig. 2.10 (a) Particle of a Tego Magnan powder with the grain size of 67 nm before activation and (b) after activation, (c) Particle of ABCR powder with the grain size of -300 nm before activation and (d) after activation (dark envelope around particles represents Mg(OH) /MgO)... 

Fig. 2.18 Grain size of Tego Magnan powder from Fig. 2.17 as a function of number of cycles (1 cycle desorption at 300°C under 0.1 MPa pressure for -4,700 s/absorption at 300°C under 2.5 MPa Hj for 60 min)...

Fig. 2.21 Particle size of Tego Magnan powder in the as-received state, after milling for 100 h under the high-energy impact mode (IMP68 with two magnets at six and eight o clock positions) and after three cycles desorption at 350°C under 0.1 MPa pressure for 15 min annealing at 350°C under pre-vacuum for 15 min/absorption at 350°C under 3.2 MPa pressure for 15 min. Grain size of 3-MgHj is shown above each data point...

Table 2.13 Grain size of P-MgH, Mg, and retained P-MgH in the Tego Magnan powder after milling and desorption at various temperatures...

Fig. 2.33 DSC hydrogen desorption temperatures vs. particle size for as-received and ball-milled Tego Magnan powder, (a) Onset temperature (T ) and (b) low-temperature (LT) and high-temperature (HT) DSC peaks. Numbers beside data points indicate grain (crystallite) size of the P-MgH phase. Standard deviation bars for the particle size (BCD) are omitted for clarity [6]...

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