Metal melt clusters, their geometry and destruction at heating
DOI:
https://doi.org/10.31498/2225-6733.33.2016.104464Keywords:
molten metal, X-ray analysis, a cluster, its geometric shapeAbstract
Possibilities of using X-rays in the study of the structure theory of liquid metal melts and the published data results have been investigated in order to improve this theory. In the theory of liquid metal melts there still remains a lot of subjects under discussions now. For example according to modern concepts of the liquid structure it includes metal clusters and disordered melt zone. Both structures are constantly exchanging atoms. According to expert information, for example, some authors (V.I. Arkharov, B.A. Baum et al.) believe that the overheating of the melt by 100-200 degrees above the liquidus point leads to complete destruction of the cluster. According to others, the destruction of clusters occurs only close to the boiling temperature of the melt. Besides it is not clear whether a cluster is a ball or convex polyhedron? As a result of high-temperature X-ray studies of liquid metals we have found that the genetic structure of a liquid metal depends on the crystal system of solid metal crystals. X-rays interference from the liquid metal clusters may occur when there are two or more rows of vibrating atoms, arranged in parallel planes. Therefore many authors who consider clusters to be spherical are wrong. Apparently a cluster is a parallelogram or a convex polyhedronReferences
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