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Gas loading apparatus for the Paris-Edinburgh press
A Bocian1, C L Bull, H Hamidov
1School of Engineering and Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.
The Review of Scientific Instruments
|October 5, 2010
Summary
A new apparatus allows loading gases into the Paris-Edinburgh press at high pressures for materials research. This system enables neutron-scattering studies with gases as pressure-transmitting media.
Area of Science:
- Materials Science
- High-Pressure Physics
- Neutron Scattering
Background:
- The Paris-Edinburgh press is crucial for high-pressure research.
- Loading gases into sample volumes at high pressures presents technical challenges.
Purpose of the Study:
- To design and operate a novel apparatus for gas loading into the Paris-Edinburgh press at room temperature and high pressure.
- To enable studies using pure or mixed gases, and gases as pressure-transmitting media for neutron-scattering experiments.
Main Methods:
- The apparatus comprises a high-pressure vessel (up to 150 MPa) and a clamp mechanism with an anvil holder.
- An initial load from the vessel seals the gas within the sample gasket.
- The clamp is transferred to the Paris-Edinburgh press for further load application and neutron-diffraction experiments.
Main Results:
- The gas loading system operates effectively at high pressures.
- Demonstrated successful neutron-diffraction experiments on compressed nitrogen using the system.
Conclusions:
- The developed apparatus provides a reliable method for gas loading in high-pressure experiments.
- It facilitates advanced materials research using neutron scattering with gaseous samples or media.
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