A multiple-calibrant technique for room-temperature pressure calibration in multi-anvil experiments

Area of Science:

• Solid Earth Sciences
• Planetary Sciences
• Material Sciences

Background:

• Multi-anvil experiments generate extreme high-pressure and high-temperature conditions.
• Accurate pressure determination is crucial but challenging in these experiments.
• Current methods require extensive preliminary calibration experiments.

Purpose of the Study:

• To develop a convenient and efficient room-temperature pressure calibration technique for multi-anvil experiments.
• To reduce the effort and time required for constructing pressure calibration curves.

Main Methods:

• Modification of the multi-anvil cell assembly design.
• Loading multiple pressure calibrants (up to seven) within a single experimental assembly.
• Acquiring multiple data points for pressure calibration in one experimental run.

Main Results:

• A convenient experimental technique for room-temperature pressure calibration was developed.
• Multiple data points for pressure calibration curves can be obtained in a single run.
• The technique significantly reduces the effort needed for calibration.

Conclusions:

• The modified cell assembly design offers a more efficient approach to pressure calibration.
• This method simplifies the process of generating accurate pressure calibration curves for multi-anvil apparatus.
• The technique is valuable for researchers in high-pressure and high-temperature experimental sciences.