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Kinetic adhesion test to determine particle surface energy.
Lorenzo Pedrolli1,2, Sadegh Nadimi1, Sadaf Maramizonouz1
1School of Engineering, Newcastle University, UK.
Hardwarex
|June 22, 2023
Summary
A novel hardware quantifies particle surface energy using the Johnson Kendall and Roberts theory. This rapid, automated system measures adhesion, crucial for particulate material characterization and simulations.
Area of Science:
- Materials Science
- Physics
- Engineering
Background:
- Particle surface energy is critical for understanding particulate material behavior.
- Existing methods for surface energy measurement can be time-consuming or complex.
- Accurate surface energy data is essential for Discrete Element Method (DEM) simulations.
Purpose of the Study:
- To develop and present a new hardware system for quantifying particle surface energy.
- To apply the Johnson Kendall and Roberts theory of elastic-adhesive contacts for measurement.
- To enable rapid and streamlined surface energy determination of particulate materials.
Main Methods:
- A new hardware setup was designed, incorporating elements for sharp particle impact.
- The system utilizes the kinetic energy of particles for detachment.
- Integrated sensors facilitate streamlined measurements, including contact time and velocity.
Main Results:
- The developed hardware successfully quantifies particle surface energy.
- The measurement procedure is efficient, with tests completed in under one minute.
- High temporal resolution for contact time () and velocity repeatability () were achieved.
Conclusions:
- The new hardware provides an efficient and accurate method for measuring particle surface energy.
- This system simplifies a critical material characterization parameter.
- The findings support improved accuracy in Discrete Element simulations of bulk particulate behavior.
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