Deagglomeration and Coagulation of Particles in Liquid Metal Under Ultrasonic Treatment

• Autorzy: Kudryashova Olga , Vorozhtsov Alexander , Danilov Pavel

Identyfikatory

DOI

10.24425/aoa.2019.129269

• Języki publikacji: EN

Abstrakty

EN

Ultrasonic processing in the cavitation mode is used to produce the composite materials based on the metal matrix and reinforcing particles of micro- and nano-sizes. In such a case, the deagglomeration of aggregates and the uniform distribution of particles are the expected effects. Although the particles can not only fragment in the acoustic field, they also can coagulate, coarsen and precipitate. In this paper, a theoretical study of processes of deagglomeration and coagulation of particles in the liquid metal under ultrasonic treatment is made. The influence of various parameters of ultrasound and dispersion medium on the dynamics of particles in the acoustic field is considered on the basis of the proposed mathematical model. The criterion of leading process (coagulation or deagglomeration) has been proposed. The calculated results are compared with the experimental ones known from the scientific literature.

Słowa kluczowe

EN

acoustic field; ultrasonic processing; metal melt; nanoparticles; acoustic coagulation; cavitation; acoustic deagglomeration

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2019
• Tom: Vol. 44, No. 3
• Strony: 543--549
• Opis fizyczny: Bibliogr. 25 poz., tab., wykr.

Twórcy

autor

Kudryashova Olga

• Tomsk State University, Lenin Ave 36, 634050 Tomsk, Russia
• Institute for Problems of Chemical and Energetic Technologies of the Siberian Branch of the Russian Academy of Sciences, Socialisticheskaya 1, 659322 Biysk, Russia

autor

Vorozhtsov Alexander

• Tomsk State University, Lenin Ave 36, 634050 Tomsk, Russia

autor

Danilov Pavel

• Tomsk State University, Lenin Ave 36, 634050 Tomsk, Russia

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