Experimental data on the surface and grain-boundary energies of nanoparticles at room and high temperatures (quenched from 1300C) were obtained by using a combination of water adsorption microcalorimetry, high-temperature oxide melt drop solution calorimetry and scanning electron transmission microscopy. At room temperature, the average surface and grain-boundary energies of anhydrous SnO2 were 120 and 71mJ/m2, respectively.

Surface and Grain Boundary Energies of Tin Dioxide at Low and High Temperatures and Effects on Densification Behavior. C.H.Chang, R.H.R.Castro: Journal of Materials Research, 2014, 29[9], 1034-46