Paracrystalline Structure of Molten Lead

Publisher Website
Google Scholar
Abstract
It is well known that one can obtain informations of crystalline lattices from powder patterns of polycrystalline solids expanding a three‐dimensional reciprocal lattice. The scattered intensity of molten metals can be analysed in a similar way by a threedimensional convolution polynom, which describes quantitatively the structure including the statistical relations within microdomains. In the case of Pb the micro‐domains can be quantitatively described by a face centered arrangement of bimodal coordination statistics with the same neighbour distance as below the melting point T. The weight of a coordination statistic decreases from 12.0 to 11.7 at T3 indicating the generation of point defects. From the consideration of the shape of the coordination statistics one obtains some information concerning the diffusion of vacancies and an one‐ and two‐dimensional collective motion of atoms.

This publication has 5 references indexed in Scilit: