Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back А Сomparison of Magnetic Susceptibility Data of Particles of Different Powders used in Flaw Detection D.A. GOLOVCHENKO, D.А. SANDULYAK, А.A. SANDULYAK, А.V. SANDULYAK, M.N. POLISMAKOVA, N.V. SOLOVEV, O.A. FROLOVA The issue of determining the magnetic susceptibility of small particles, in particular, powder particles for flaw detection, while still unresolved, requires special consideration, especially in connection with the need to obtain detailed information about the magnetic parameters of the particles themselves that are not yet available (from different manufacturers and users of powders). The work experimentally obtained data (in test mode, with a fixed fi eld strength) on the effect of the volume fraction of this kind of ferroparticles on the magnetic susceptibility of the corresponding dispersed samples: powder for fl aw detection Magnaflux 7c, Klever MP, as well as magnetite powder - for comparison. Using these data in terms (using the original approach) for the values of the magnetic susceptibility of individual particles showed that these values differ markedly from each other, thereby confirming the need to obtain such information (at least test) for particles of a particular powder. This information can be used to make a decision on the selective implementation, in particular, of the corresponding (by the level of magnetic effect) flaw detectors in order to most clearly detect defects in products and parts. Keywords: powder for flaw detection, magnetic properties of disperse sample magnetic properties of particle, electromagnetmagnetometer of ballistic type. DOI: 10.25791/pribor.7.2025.1596 Pp. 15-19.