Characterization of aerosols generated by nanosecond laser ablation of an acrylic paint
| Autor: | Jean-Marc Weulersse, J. Vendel, Guy Decobert, Pascale Dewalle, Philippe Hervé |
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| Přispěvatelé: | Département de Physico-Chimie (DPC), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Laboratoire d'énergétique et d'économie d'énergie (LEEE), Université Paris Nanterre (UPN), AREVA NC |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Electrical mobility
Office buildings Spheres Particle number analytical parameters laser surgery Condensation aerosol Analytical chemistry 02 engineering and technology Ablation 01 natural sciences law.invention law Paint General Materials Science Low pressure impactor [PHYS]Physics [physics] education.field_of_study Laser ablation Chemistry nanoparticle engine exhaust particle sizer article condensation particle counter Nuclear installations 021001 nanoscience & nanotechnology Pollution Condensation particle counters priority journal 0210 nano-technology YAG laser Particles (particulate matter) Aggregates Chemical compositions Population Sub-micron particles Yttrium aluminum garnet Nanosecond laser ablation 010402 general chemistry Condensation particle counter Environmental Chemistry education acrylic acid titanium dioxide carbon Aerodynamic diameters Laser 0104 chemical sciences 13. Climate action Particle Primary nanoparticles Particle counter Exhaust systems (engine) Neodymium lasers |
| Zdroj: | Aerosol Science and Technology Aerosol Science and Technology, 2010, 44 (10), pp.902-915. ⟨10.1080/02786826.2010.501832⟩ |
| Popis: | cited By 3; This study focuses on particles produced during laser ablation of a green colored acrylic wall paint, which is frequently used in industrial buildings and in particular in nuclear installations. Ablation is carried out with a Nd: YAG laser at a wavelength of 532 nm and a pulse duration of 5 ns, in a cell at ambient pressure and temperature, which is ventilated by filtered air. The number of particles emitted was measured with a Condensation Particle Counter (CPC) and their size with an Engine Exhaust Particle Sizer (or EEPS) for the nanometric range, and an AEROSIZER (for the micrometric range). The mass and shape of particles were determined by sampling on filters as well as on the different impaction plates of a Low-Pressure Impactor (LPI). Two particle populations were detected: a population of aggregates of primary nanoparticles with an electrical mobility diameter ranging from 30 to 150 nm, and a population of spherical submicron particles with an aerodynamic diameter ranging from 400 to 1000 nm. The spherical particles are mainly composed of titanium dioxide, and the aggregates most likely of carbon. The presence of two types of particles with different size distributions, shapes, and chemical compositions, implies that particles originating from the ablation of paint are formed by two different mechanisms: agglomeration in the case of the nanometric aggregates, which is preceded by steps of nucleation, condensation, and coagulation of the primary particles, while the submicron spheres result from a direct ejection mechanism. Copyright © American Association for Aerosol Research. |
| Databáze: | OpenAIRE |
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