Small-angle Neutron Scattering Measurements on SnO_2 Particles Suspended in Liquid Sn-S Systems

摘要

Small-angle neutron scattering measurements were carried out on liquid Sn-0.4mol/100SnO_2 (solid spherical particle) -1.1 at/100S, Sn-0.4mol/100SnO_2 and Sn-1.1 at/100 S systems at 723 K. The scattering intensity for Sn-SnO_2 system is proportional to the parameter, Q~-4, while the scattering intensity for Sn-SnO_2-S system is lower, showing nearly Q~-3 dependence. To analyze them, the scattering intensity has been calculated for Sn-SnO_2 and Sn-SnO_2-S systems with various particle sizes and thicknesses of the surface layer. For Sn-SnO_2-S system, the best fit with the experimental data has been obtained for a particle size of 4 μm and the surface layer thickness of 100 A, consisting of S.