English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

It is shown that analysis of M\"{o}ssbaur spectra of a granulated medium,immersed into the epoxy resin without hardener, allows to study mechanicalvibrations of granules. In our experiments, small particles of the potassiumferrocyanide with a 1.25 micron mean size played a role of granules. Thiscompound was enriched by $^{57}$Fe isotope. Particle vibrations in the vibratedresin with the frequency 12.72 MHz were induced by piezo polymer film. At rest,M\"{o}ssbauer spectrum of $^{57}$Fe in the potassium ferrocyanide consists of asingle line. Ultrasonic vibration of nuclei splits the line into a combstructure with a period equal to the vibration frequency. The spectrum analysisallows to estimate the vibration amplitude of particles and decay of theultrasound in this medium. The proposed method is unique since it allows tomeasure subangstrom displacements of particles vibrating with several MHzfrequency.

Application of M\"{o}ssbauer spectroscopy to study vibrations of a granular medium excited by ultrasound