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Updated: Jul 4, 2026
07:26
Synthesis and Microdiffraction at Extreme Pressures and Temperatures
Published on: October 7, 2013
A cubic boron nitride gasket for diamond-anvil experiments
Nobumasa Funamori1, Tomoko Sato
1Department of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan.
The Review of Scientific Instruments
|June 3, 2008
Summary
Researchers developed a cubic boron nitride (c-BN) gasket for diamond-anvil cells, enabling thicker sample chambers in high-pressure experiments. This advancement allows for improved x-ray diffraction measurements of various materials.
Area of Science:
- Materials Science
- High-Pressure Physics
- Geophysics
Background:
- Conventional metal gaskets limit sample chamber thickness in diamond-anvil cells.
- Thicker sample chambers are crucial for advanced high-pressure experiments.
Purpose of the Study:
- To develop and optimize cubic boron nitride (c-BN) gaskets for diamond-anvil cells.
- To enable significantly thicker sample chambers for high-pressure studies.
Main Methods:
- Developed novel techniques for preparing c-BN gaskets.
- Established methods for efficiently filling the thicker sample chambers.
- Utilized diamond-anvil cells with c-BN gaskets for high-pressure experiments.
Main Results:
- Achieved sample chambers several times thicker than those with conventional metal gaskets.
- Successfully measured x-ray diffraction patterns of SiO2 glass up to 100 GPa.
- Demonstrated the effectiveness of c-BN gaskets for low-Z, noncrystalline samples.
Conclusions:
- Cubic boron nitride gaskets significantly enhance capabilities for high-pressure research.
- The developed techniques facilitate improved sample loading and experimental conditions.
- This method opens new avenues for studying materials under extreme pressures.
