Nanoparticels from brake pads wear

0576055 - ÚFM 2025 RIV CZ eng C - Conference Paper (international conference)
Švábenská, Eva - Roupcová, Pavla - Friák, Martin - Schneeweiss, Oldřich
Nanoparticels from brake pads wear.
NANOCON Conference Proceedings - International Conference on Nanomaterials. Ostrava: Tanger Ltd., 2022, s. 249-254. ISBN 978-80-88365-09-9. ISSN 2694-930X.
[Nanocon 2022 - International conference /14./. Brno (CZ), 19.10.2022-21.10.2022]
Research Infrastructure: CzechNanoLab - 90110
Institutional support: RVO:68081723
Keywords : Wear particles * analysis * TEM * iron oxides * metallic particles
OECD category: Materials engineering

Exposure to particulate air pollution has been associated with a variety of health problems. One of the main
sources of metal-rich airborne particulate pollution in roadside environments are brake-wear emissions. The
scanning electron microscopy (SEM) and transmission electron microscopy (TEM), Mössbauer spectroscopy
(MS), X-ray powder diffraction (XRD) was used to a make quantitative evaluation of wear particles in two
samples. Sizes, morphologies, oxidation state, and trace element compositions of wear particles were
investigated using combination of several methods revealed high concentrations of Fe species and phases,
often associated with carbonaceous material. SEM and TEM observations show that brake wear particles with
a size of tens to hundreds of nm mainly form particle agglomerates. However, ultrafine (<100 nm) particles are
likely to pose a health threat after inhalation and/or ingestion.
Permanent Link: https://hdl.handle.net/11104/0345773