Wykorzystanie rezonansowego pochłaniania fali ultradźwiękowej do określania rozmiarów klasterów cieczy magnetycznej APG-832

• Autorzy: Józefczak, A. , Skumiel, A. , Hornowski, T.

Warianty tytułu

EN

Making use of a ultrasonic wave resonance absorbtion to the AF magnetic liquid clusters dimensions determination

• Języki publikacji: PL

Abstrakty

EN

A magnetic fluid is a colloidal suspension of magnetic particles in a liquid carrier. It uses in engineering applications. Industries most commonly use ferrofluids are computers loundspeakers, petrochemicals, semiconductors, medicals. The present paper includes results of measurement dimension of spherical which arise in a magnetic fluid under the influence an external magnetic field. We used an acoustic method of a ultrasonic wave resonanse absorbtion. The measurement have been carried out in a magnetic fluid APG-832 for frequency f=l,l MHz at the temperatures 20°C, 30°C, 40°C, 50°C and 60°C. The obtain dimensions of spherical clusters are 624 nm (100 mT) - 1324 nm (450 mT).

• Czasopismo: Molecular and Quantum Acoustics
• Rocznik: 1998
• Tom: Vol. 19
• Strony: 119-124
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Józefczak, A.

autor

Skumiel, A.

autor

Hornowski, T.

• Institute of Acoustics, Adam Mickiewicz University 60-679 Poznań, Matejki 48/49, Poland,