Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/80620
Type of publication: Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Mechanikos inžinerija / Mechanical Engineering (T009)
Author(s): Amulevičius, Arūnas;Mažeika, Kęstutis;Davidonis, Rimantas;Daugvila, Antanas;Mačionis, J;Sipavičius, Česlovas;Padgurskas, Juozas
Title: Magnetic nanomaterials in the use of friction problems
Is part of: BALTTRIB' 2007: international conference, Lithuanian University of Agriculture, Kaunas, Lithuania 21-23 November 2007: proceedings. Akademija: Lithuanian University of Agriculture, 2007
Extent: p. 211-216
Date: 2007
Keywords: Ferrofluid;Nanoparticles;Mossbauer effect;Brownian motion
Abstract: Nanocrystalline materials are finding increasing application everyday. One possible application is modification of surfaces or oils with magnetic nanoparticles. Two aspects are used in serial production. Firstly, oils are enriched with iron oxide nanoparticles and form suspension - so called ferrofluid. Structural defects on the steel surface form magnetic field gradients, which attract particles from oil. At defected place collections of nanoparticles are formed and they cover defects. Being very small particles can fill even tiniest splits (up to 0,01 pm) and prevent further cracking. Secondly, external magnetic field can change viscosity of oil. These properties allow creation of dampers with controllable resilience or control of the rotation speed of shaft. The use of nanocrystalline particles is very perspective and requires more research in order to investigate magnetic properties of nanoparticles, and how these properties depend on the particle size and mobility (Brownian motion)
Internet: https://hdl.handle.net/20.500.12259/80620
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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