0.02
0.03
0.04
0.05
0.06
0.07
0.08
(particle diameter) -1 [nm -1 ]
0
2
4
6
8
10
12
U melting
[kJmol
-1 ]
Δ
Figure 7.8 Enthalpy of melting of aluminum, according to Eckert et al. [11]. Note the inverse
proportionality as described in Eq. (7.13).
0
0.1
0.2
0.3
0.4
(particle diameter) -1 [nm -1 ]
400
440
480
520
560
600
640
melting
temperature
[K]
Experimental data
Melting point coarse lead
Fit for small particles
0
10
20
30
40
50
particle diameter [nm]
400
440
480
520
560
600
melting
temperature
[K]
Experimental data
Melting point coarse lead
(a)
(b)
Figure 7.9 Melting point of lead as a function of particle size, according to Coombes [12].
(a) Melting point plotted versus particle size. (b) Melting point plotted versus inverse particle size.
144j 7 Phase Transformations of Nanoparticles