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Resonant ultrasound spectroscopy: The essential toolbox
Fedor F Balakirev1, Susan M Ennaceur1, Robert J Migliori1
1Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
The Review of Scientific Instruments
|January 3, 2020
Summary
Resonant Ultrasound Spectroscopy (RUS) offers a high-accuracy method for measuring elastic moduli using material resonances. This guide provides resources to build and operate a state-of-the-art RUS system for precise material characterization.
Area of Science:
- Materials Science
- Acoustics
- Solid Mechanics
Background:
- Elastic modulus measurement is crucial for material characterization.
- Existing techniques can be labor-intensive or lack accuracy.
- Resonant Ultrasound Spectroscopy (RUS) presents a minimal-effort, high-accuracy alternative.
Purpose of the Study:
- To provide a comprehensive guide for constructing and utilizing a state-of-the-art Resonant Ultrasound Spectroscopy (RUS) system.
- To enable researchers to perform accurate elastic modulus measurements.
- To democratize access to advanced material characterization techniques.
Main Methods:
- Utilizes mechanical resonances (normal modes of vibration) of solid specimens (rectangular parallelepipeds or cylinders).
- Specimen dimensions range from sub-millimeter to apparatus-limited sizes.
- Detailed instructions cover apparatus construction, transducer design, and 3-D printed stage fabrication.
Main Results:
- Open-source circuit diagrams and data acquisition software (Los Alamos National Laboratory) are provided.
- Free analysis software is available for elastic moduli extraction.
- Procedures for measurement acquisition and mathematical explanations for analysis are included.
Conclusions:
- The provided resources enable the construction and operation of a functional RUS system.
- This facilitates accurate determination of elastic moduli for various materials.
- The open-source approach promotes accessibility and advancement in material characterization.
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