A model for sound propagation between two adsorbing microporous plates

Area of Science:

• Acoustics
• Physical Chemistry
• Materials Science

Background:

• The Frequency Response method is used to measure diffusion in micropores.
• Extending this method to audible sound ranges requires new models.
• Sound propagation near adsorbing surfaces is complex.

Purpose of the Study:

• To propose a model for sound propagation between two infinite adsorbing plates.
• To investigate the extension of the Frequency Response method to audible sound.
• To relate adsorption parameters to acoustic quantities.

Main Methods:

• Developed a model based on classical Kirchhoff theory.
• Utilized the Low Reduced Frequency Approximation method for solutions.
• Related adsorption parameters (diffusivity, equilibrium constant) to the propagation constant.

Main Results:

• Established a relationship between adsorption parameters and acoustic propagation.
• Provided a theoretical framework for audible sound range measurements.
• The model facilitates understanding sound interaction with adsorbing surfaces.

Conclusions:

• The proposed model successfully links adsorption properties to sound propagation.
• This work enables the application of the Frequency Response method in the audible range for micropore diffusion analysis.
• The model offers a foundation for further research in acoustics and material characterization.