Sample cell for EXAFS measurements on molten materials at elevated temperatures.

Area of Science:

• Materials Science
• Analytical Chemistry
• Physical Chemistry

Background:

• Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy is a powerful technique for determining local atomic structure.
• High-temperature measurements are crucial for understanding material behavior under relevant operating conditions.
• Existing sample cells for high-temperature EXAFS can be complex, expensive, or difficult to fabricate.

Purpose of the Study:

• To design and fabricate a simple, cost-effective sample cell for high-temperature EXAFS measurements.
• To demonstrate the cell's capability in maintaining sample integrity at elevated temperatures.
• To enable reliable EXAFS analysis of both solid and liquid samples up to 1000°C.

Main Methods:

• Design and fabrication of a novel sample cell using readily available materials.
• Rigorous testing of the cell's thermal stability and inertness.
• Utilization of the cell for EXAFS measurements on various solid and liquid samples at temperatures up to 1000°C.

Main Results:

• The fabricated sample cell proved to be rigid, inert, and easy to construct.
• The cell effectively maintained the critical specimen dimensions for both solid and liquid samples.
• Successful EXAFS data were collected at temperatures up to 1000°C, demonstrating the cell's utility.

Conclusions:

• A simple and inexpensive sample cell for high-temperature EXAFS has been successfully developed.
• This cell facilitates reliable structural analysis of materials at extreme temperatures.
• The design offers a practical solution for researchers studying high-temperature phenomena using EXAFS spectroscopy.