Study of nanodispersed aluminum and iron alcosols by photoacousticspectroscopy

Vladimir An (1) , Charles de Izarra (2) , Gennady Saveliev (1)

1 High Voltage Research Institute
2 GREMI - Groupe de recherches sur l'énergétique des milieux ionisés

Nanodispersedaluminum and ironalcosols were prepared by ultrasonic dispersion of nanodispersedaluminum and iron powders in absolute ethanol. The photoacoustic signal (PAS) produced in modulated CO2 laser irradiation (1.026 and 1.096 kHz) of alcosols depends on the nature and method of nanoparticle fabrication and does not depend on their concentration in ethanol (within 1-5 g/l). Chemical interaction between metal nanoparticles and ethanol activated by laser irradiation or/and ultrasound is considered as the cause of the PAS.

Domaines: Matériaux

Vladimir An, Charles de Izarra, Gennady Saveliev. Study of nanodispersed aluminum and iron alcosols by photoacousticspectroscopy. Optics Communications, 2011, pp.3124-3128. ⟨hal-00708914⟩