Spectroscopic methods in the analysis of wear particles

0575953 - ÚFM 2024 RIV CH eng J - Článek v odborném periodiku
Švábenská, Eva - Roupcová, Pavla - Schneeweiss, Oldřich
Spectroscopic methods in the analysis of wear particles.
Chemical Papers. Roč. 77, č. 12 (2023), s. 7319-7329. ISSN 0366-6352
Výzkumná infrastruktura: CzechNanoLab - 90110
Institucionální podpora: RVO:68081723
Klíčová slova: Mössbauer spectroscopy * Wear debris * Iron oxides * Fine particles * Brakes
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impakt faktor: 2.2, rok: 2022
Způsob publikování: Open access
https://link.springer.com/article/10.1007/s11696-023-03007-8

Detailed characteristics wear particles formed in various brake pads were done. Our study was focused on identifcation
structure and chemical composition of powder particles released by brake abrasion. The experimental studies were carried
out using Mössbauer spectroscopy, X-ray powder difraction, scanning electron microscopy and magnetic measurements.
Structure and chemical composition of the original brake pads and disc samples were compared with the results obtained for
wear particles. The chemical and phase composition of wear particles is in large part similar to composition of the original
brake pads. Wear particles contained mainly various types of iron oxides, iron and iron carbon metallic particles. The part of
the wear particles showed paramagnetic behaviour at room temperature. The sample with fully paramagnetic wear particles
behaviour was subjected low temperature Mössbauer and magnetic measurements. The results indicate transition interval
corresponding to magnetically ordered states—ferro/antiferromagnetic.
Trvalý link: https://hdl.handle.net/11104/0345668