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Fabrication of Compressed Hosiery and Measurement of its Pressure Characteristic Exerted on the Lower Limbs
Published on: May 27, 2020
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Pressure Induced Densification and Compression in a Reprocessed Borosilicate Glass
Kathryn J Ham1, Yoshio Kono2, Parimal J Patel3
1Department of Physics, University of Alabama at Birmingham, Birmingham, AL 35294, USA. katieham@uab.edu.
Materials (Basel, Switzerland)
|January 13, 2018
Summary
Reprocessed borosilicate glass densified by 24% under high pressure, reaching 11.4 GPa. This study validates X-ray radiography for measuring amorphous material compression and bulk modulus.
Area of Science:
- Materials Science
- Geophysics
- Condensed Matter Physics
Background:
- Borosilicate glass is widely used in various applications.
- Understanding its behavior under extreme conditions is crucial for material design and geological studies.
- Reprocessing can alter glass properties, necessitating new characterization.
Purpose of the Study:
- To investigate the pressure-induced densification and compression of reprocessed borosilicate glass.
- To validate X-ray radiography as a method for high-pressure volume measurements.
- To determine the bulk modulus of the reprocessed glass.
Main Methods:
- Utilized X-ray radiography and energy-dispersive X-ray diffraction.
- Employed a Paris-Edinburgh (PE) press at a synchrotron X-ray source.
- Used gold foil pressure markers and validated the radiography method with pure α-Iron.
Main Results:
- Achieved a maximum pressure of 11.4 GPa on the reprocessed borosilicate glass.
- Observed a 24% increase in sample density (2.755 gm/cc) after compression.
- Determined an initial bulk modulus of 30.3 GPa, consistent with theoretical values.
Conclusions:
- X-ray radiography is a reliable method for measuring amorphous material volume under high pressure.
- Reprocessed borosilicate glass exhibits significant densification and compression behavior.
- The methodology is applicable to a wide range of amorphous materials at high pressures.
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