Topological evolution of self-induced silicon nanogratings during prolonged femtosecond laser irradiation

Gradual evolution of self-induced silicon surface topology from one-dimensional ridge-like to twodimensional spike-like nanogratings and then to isotropic sets of micro-columns was observed by evenly increasing IR and UV femtosecond laser irradiation doseye

Ignition of a Ti-Al-C system by an electron beam

This paper describes the optimal modes of initiation of self-propagating hightemperature synthesis with the help of an electron beam on the example of a Ti-Al-C powder mixture. A pulsed electron beam with a particle energy of tens of kiloelectronvolts and a duration of hundreds of microseconds is used. Morphology, structure, and elemental composition of formed products in the form of Ti3AlC2 and TiC are studie

The change in the surface topography of magnesium under high-flux C ion irradiation

The topography of the surface of the magnesium sample after irradiation by the high-intensity pulsed ion beam of a TEMP-4M accelerator was studied. The irradiation causes the formation of a regular comb structure and the creation of craters, their depth reaches 1-1.5 μ

Topological evolution of self-induced silicon nanogratings during prolonged femtosecond laser irradiation

Abstract Gradual evolution of self-induced silicon sur face topology from one-dimensional ridge-like to twodimensional spike-like nanogratings and then to isotropic sets of micro-columns was observed by evenly increasing IR and UV femtosecond laser irradiation dose. This topo logical evolution exhibits clear indications of consequent melting and vaporization processes being set up during the prolonged laser irradiation. Monotonously decreasing cumulative IR and UV femtosecond laser-nanostructuring thresholds may indicate an increase of optical absorbance of the laser-nanostructured silicon surfaces versus the increas ing laser dose, consistent with the consequent onset of the abovementioned thermal modification processes

Topological evolution of self-induced silicon nanogratings during prolonged femtosecond laser irradiation

yesGradual evolution of self-induced silicon surface topology from one-dimensional ridge-like to twodimensional spike-like nanogratings and then to isotropic sets of micro-columns was observed by evenly increasing IR and UV femtosecond laser irradiation dos

Ignition of a Ti-Al-C system by an electron beam

This paper describes the optimal modes of initiation of self-propagating hightemperature synthesis with the help of an electron beam on the example of a Ti-Al-C powder mixture. A pulsed electron beam with a particle energy of tens of kiloelectronvolts and a duration of hundreds of microseconds is used. Morphology, structure, and elemental composition of formed products in the form of Ti3AlC2 and TiC are studie

Ignition of a Ti-Al-C system by an electron beam

This paper describes the optimal modes of initiation of self-propagating hightemperature synthesis with the help of an electron beam on the example of a Ti-Al-C powder mixture. A pulsed electron beam with a particle energy of tens of kiloelectronvolts and a duration of hundreds of microseconds is used. Morphology, structure, and elemental composition of formed products in the form of Ti3AlC2 and TiC are studie