Ultrasonic cavitation for obtainment of nanometric sized particles

A. Santos, R. Guzmán, J. Espinosa, J. Estrada

    Producción científica: Contribución a una revistaPonencia publicada en las memorias del evento con ISSNrevisión exhaustiva

    6 Citas (Scopus)


    This project aims to determine the possibility of obtaining nanometric size particles of aluminium oxide (Al2O3) and titanium dioxide (TiO2) from commercial micron-sized powders, through the physical principle of ultrasonic cavitation, in order to be used as supply material in coatings made through a process of thermal spray by flame. The tests are performed on a Hielscher UIP 1000hd Ultrasonics equipment, in a 20 micron wave amplitude and in times of 6, 8, 12, 18 and 24 hours. The determination of the particle size is done through image processing using ImageJ software, obtained by the technique of scanning electron microscopy (SEM); while the elemental composition of the processed samples is analyzed through the technique of energy dispersing spectroscopy (EDS). The results show that Al2O3 and TiO2 have a reduction behaviour of the particles size after being subjected to ultrasonic cavitation, however is only reached the nanometric size in the TiO2 samples.

    Idioma originalInglés
    Número de artículo012035
    PublicaciónJournal of Physics: Conference Series
    EstadoPublicada - 12 feb. 2016
    Evento3rd International Meeting for Researchers in Materials and Plasma Technology, IMRMPT 2015 and 1st Symposium on Nanoscience and Nanotechnology - Bucaramanga, Colombia
    Duración: 4 may. 20159 may. 2015


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