Evolution of the diffraction pattern of probing radiation reflected by a silver surface upon melting
- Authors: Batenin V.M.1, Kachalov V.V.1, Kurilovich A.V.1, Mendeleev V.Y.1
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Affiliations:
- Joint Institute for High Temperatures
- Issue: Vol 54, No 2 (2016)
- Pages: 277-280
- Section: Heat and Mass Transfer and Physical Gasdynamics
- URL: https://journals.rcsi.science/0018-151X/article/view/156759
- DOI: https://doi.org/10.1134/S0018151X16020024
- ID: 156759
Cite item
Abstract
Evolution of the diffraction pattern was studied experimentally using a sample of silver with a moderately rough surface formed by the composition of predominantly unidirectional grooves. The sample was heated in a tubular electric furnace; its temperature was determined by a thermocouple measurement. At a temperature close to the liquidus temperature, the appearance of isotropically scattered radiation, concentrated near the specular beam, is detected. We analyzed the evolution of these radiation components upon melting and showed that the nucleation is the source of isotropic scattering. It is found that the evolution of the diffraction pattern enables one to observe the melting of the surface layer, accompanied by the simultaneous existence of the disappearing solid phase and the growing liquid phase. Spreading of the sample melt over a substrate can be also observed with the diffraction pattern.
About the authors
V. M. Batenin
Joint Institute for High Temperatures
Email: v_mendeleyev@list.ru
Russian Federation, Moscow, 125412
V. V. Kachalov
Joint Institute for High Temperatures
Email: v_mendeleyev@list.ru
Russian Federation, Moscow, 125412
A. V. Kurilovich
Joint Institute for High Temperatures
Email: v_mendeleyev@list.ru
Russian Federation, Moscow, 125412
V. Ya. Mendeleev
Joint Institute for High Temperatures
Author for correspondence.
Email: v_mendeleyev@list.ru
Russian Federation, Moscow, 125412
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