rus
Issue #6/2025
A. M. Frolov, P. S. Vervikishko, T. V. Bgasheva, S. V. Petukhov, A. S. Bulava, M. V. Brykin, M. A. Sheindlin
Densification of Super-Refractory Carbide Ceramics by Laser Remelting for Laser-Induced Mass Spectrometry
Densification of Super-Refractory Carbide Ceramics by Laser Remelting for Laser-Induced Mass Spectrometry
DOI: 10.22184/1993-7296.FRos.2025.19.6.444.453
This paper provides a modification method for the surface layer of mixed tantalum–hafnium carbide samples to obtain the samples with extremely high density required for reliable implementation of the experiments related to the mass spectrometry of vapor generated during the laser-induced evaporation. Such samples were obtained by remelting the surface layer of tantalum–hafnium carbide ceramics using a series of subsecond laser pulses. Analysis of the obtained remelted areas has shown that the crystallized melt area is single-phase mixed carbide, namely a solid solution of the HfC – TaC system that is characterized by a highly uniform distribution of tantalum and hafnium throughout the remelted area. The time-of-flight mass spectrometry was used to study the evolution of vapor components during the laser-induced evaporation process of pre-melted carbide that demonstrated a good correlation with the surface temperature in contrast to the experiments with the sintered ceramics.
Subscribe to the journal Photonics Russia to read the full article.
This paper provides a modification method for the surface layer of mixed tantalum–hafnium carbide samples to obtain the samples with extremely high density required for reliable implementation of the experiments related to the mass spectrometry of vapor generated during the laser-induced evaporation. Such samples were obtained by remelting the surface layer of tantalum–hafnium carbide ceramics using a series of subsecond laser pulses. Analysis of the obtained remelted areas has shown that the crystallized melt area is single-phase mixed carbide, namely a solid solution of the HfC – TaC system that is characterized by a highly uniform distribution of tantalum and hafnium throughout the remelted area. The time-of-flight mass spectrometry was used to study the evolution of vapor components during the laser-induced evaporation process of pre-melted carbide that demonstrated a good correlation with the surface temperature in contrast to the experiments with the sintered ceramics.
Subscribe to the journal Photonics Russia to read the full article.
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