journal article·2015-09

Laser ablation of titanium in liquid in external electric field

A.A. Serkov, E.V. Barmina, G.A. Shafeev, V.V. Voronov

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Abstract

Abstract Ablation of a bulk Ti target by 10 ps laser pulses in water is experimentally studied in external DC electric field. It is demonstrated that both lateral size of nanostructures (NS) on Ti surface and their density depend on the electric field applied to the target. Scanning Electron Microscopy of NS reveals the shift of their size distribution function toward larger sizes with applied field (cathodic bias, 25 V DC). Density of mushroom-like NS with applied electric field amounts to 1010 cm−2. X-ray diffraction of generated nanoparticles (NPs) shows difference in the crystallographic structure of NPs of non-stoichiometric Ti oxides generated with and without electric field. This conclusion is corroborated with the optical absorption spectroscopy of obtained colloids. Transmission Electron Microscopy of NPs also shows difference in morphology of particles produced with and without cathodic bias. The results are interpreted on the basis of instability of the melt on Ti surface in the electric field.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Laser-Ablation Synthesis of Nanoparticles · Laser-induced spectroscopy and plasma · Diamond and Carbon-based Materials Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (33)

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