Ultrasonic-assisted grinding (UAG) is widely used in the manufacture of hard and brittle materials. However, process removal mechanism was never elucidated its potential yet to be fully exploited. In this paper, material analyzed by ultrasonic-assisted scratching. Three distinct surfaces (S1, S2, S3) were selected on basis braided laminated structure fiber bundles. The scratching experiment car...

Difficulties encountered in estimating the biodegradation of poorly water-soluble substances are often linked to their limited bioavailability to microorganisms. Many original bioavailability improvement methods (BIMs) have been described, but no global approach was proposed for a standardized comparison of these. The latter would be a valuable tool as part of a wider strategy for evaluating po...

Rhodamine B is widely used in the dyeing of paints, acrylic and other fabrics as well biological products. It highly toxic to organisms when directly discharged into water. To this end, paper, degradation water by ultrasound-assisted TiO2 photocatalysis was investigated. The effects various factors, such amount catalyst, speed mechanical stirring, frequency ultrasonic vibration, output power, i...

These recommendations aim to be a tool for the selection and appraisal of the methods of characterization of porous solids, and to also give the warnings and guidelines on which the experts generally agree. For this purpose, they successively consider the description of a porous solid (definitions, terminology), the principal methods available (stereology , radiation scattering, pycnometry, ads...

Ultrasonic-assisted wire–arc additive manufacturing (WAAM) can refine microstructures, enhancing performance and improving stress concentration anisotropy. It has important application prospects in aerospace, weaponry, energy, transportation, other frontier fields. However, the process parameters of ultrasonic treatment as an auxiliary technology WAAM still have impact on product indicators, su...

The aim of this work was to characterize copper ferrite nanoparticles synthesized via solvothermal method and to investigate the effects of ultrasonic waves on the synthesis efficiency. Crystal structure, functional groups, microstructure, particle size, magnetic properties, specific surface area, porosity distribution and photocatalytic activity of the synthesized nanoparticles were also inves...

In this paper, xCuO/CeO2–γAl2O3 nano-catalysts were successfully synthesized by precipitation from an aqueous solution which modified via ultrasonic waves. For characterization of xCuO/CeO2–γAl2O3 samples N2 adsorption results showed that the BET surface area of the CuO/CeO2–γAl2O3, X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-rays (EDX dot-mapping) were u...

It has been proved that ultrasonic energy can considerably increase the amount of oil recovery in an immiscible displacement process. Although many studies have been performed on investigating the roles of ultrasonic waves, based on the best of our knowledge, little attention has been paid to evaluate wave attenuation parameter, which is an important parameter in the determination of the energy...

Microcrystalline cellulose (MCC) was functionalized with quaternary amine groups for use as an adsorbent to remove Congo Red dye (CR) from aqueous solution. The ultrasonic pretreatment of MCC was investigated during its functionalization. Characterization was conducted using infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and scanning electron mic...