title: ÐÐ¿ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼ÐµÑÐ¾Ð´Ñ Ð´Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐµÐ¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Optical methods for the study of ferromagnetic liquids
Creators: name: ÐÐ»ÐµÐºÑÐµÐµÐ², ÐÑÑÐµÐ½Ð¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÐµ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐ¸
Ð°Ð³ÑÐµÐ³Ð°ÑÐ¸Ñ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ ÑÐ°ÑÑÐ¸Ñ
ÑÑÐ°Ð±Ð¸Ð»ÑÐ½Ð¾ÑÑÑ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ Ð¶Ð¸Ð´ÐºÐ¾ÑÑÐµÐ¹
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Ð¿Ð¾Ð³Ð»Ð¾ÑÐµÐ½Ð¸Ðµ ÑÐ²ÐµÑÐ°
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Ð»Ð°Ð·ÐµÑÐ½ÑÐ¹ ÐºÐ¾ÑÑÐµÐ»ÑÑÐ¸Ð¾Ð½Ð½ÑÐ¹ ÑÐ¿ÐµÐºÑÑÐ¾Ð¼ÐµÑÑ
magnetic liquids
magnetic particle aggregation
magnetic particle stability
light scattering
light absorption
spectrometry
laser correlation spectrometer

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description: The subject of the graduate qualification work is âOptical methods for the study of ferromagnetic liquidsâ. This work is devoted to the study of the optical characteristics of magnetic fluids. Most of the research carried out is aimed at obtaining and analyzing the transmission spectra of magnetic solutions. For these purposes, a device for detecting transmission spectra was developed. This setup was used to study liquids with different types of stabilization of magnetic particles at different concentrations. We also measured the transmission spectra of magnetic particles with different solvents: a liquid based on kerosene and based on distilled water. These liquids were dispersed in an ultrasonic chamber, their spectra were analyzed for two weeks. Some of the studies presented in this work were aimed at studying the size of magnetic particles suspended in a liquid, as well as studying the dynamics of aggregate formation under the influence of magnetic fields of different magnitude. To carry out these studies, a scheme of a laser correlation spectrometer was developed. All the data obtained were analyzed. The results obtained make it possible to draw conclusions about the stability of magnetic particles in solution. The surfactants that most impede aggregation were identified, and the type of carrier fluid and the concentration at which the magnetic particles retain their original properties for a longer time were also established. The influence of the magnetic field on aggregation was also evaluated. The sizes of particles and aggregates in magnetic solutions have been determined.