Intermediate-range order in lead metasilicate glass

[摘要] The complementarity of anomalous X-ray scattering (AXS) and neutron diffraction (ND) techniques is used here to investigate the nature and origin of intermediate-range order in lead metasilicate glass. Both X-ray and neutron structure factors reveal small peaks at low wave vector which are shown to be associated with intermediate-range order of the Pb-O network. The combination of AXS and ND is shown to be a powerful tool to correlate contributions from the different atom pairs to such a peak. The information thus derived is compared with results from alkali germanate glasses and with structural data on corresponding crystalline compounds. (C) 1997 Elsevier Science B.V.

[发布日期] 1997-12-01

[效力级别]  Proceedings Paper

[关键词] intermediate-range order;anomalous X-ray scattering