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Role of shock waves in materials processing: Fundamentals and Applications
Abhinav Priyadarshi1, Amanpreet Kaur1, Mohammad Khavari2
1School of Engineering Computing and Mathematics, Oxford Brookes University, Oxford, UK.
Ultrasonics Sonochemistry
|July 24, 2025
Summary
Ultrasonic processing (USP) advances material science, but scalability is limited. This study reveals cavitation-induced shock waves are key drivers of material modification in USP, offering new insights for industrial applications.
Area of Science:
- Material Science
- Manufacturing Technology
- Acoustics
Background:
- Ultrasonic processing (USP) offers significant advancements in pharmaceutical, food, environmental, and material sciences.
- Industrial scalability of USP faces challenges due to limited awareness, standardization, and predictive models.
- Fundamental understanding of USP's physical phenomena is crucial for optimization and scale-up.
Purpose of the Study:
- To uncover the fundamental mechanisms governing USP.
- To explore the role of physical phenomena in USP applications.
- To provide a comprehensive overview of recent research in USP.
Main Methods:
- In-situ high-speed visualization techniques.
- Characterization of acoustic emissions.
- Multiphysics modeling and analysis.
Main Results:
- Identified cavitation-induced shock waves as a primary driver of material modification in USP.
- Shifted focus from shock waves as by-products to key mechanisms.
- Demonstrated the pivotal role of shock waves in metal casting, additive manufacturing, and nanomaterial production.
Conclusions:
- Cavitation-induced shock waves are fundamental to USP's effectiveness in material modification.
- A deeper understanding of these shock waves is essential for advancing USP technology.
- This research provides a new perspective for optimizing and scaling USP applications.
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