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$High Pressure Single Crystal Diffraction at PX^2$

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Published on: January 16, 2017

A compact x-ray diffraction system for dynamic compression experiments on pulsed-power generators.

T Ao¹, D V Morgan², B S Stoltzfus¹

¹Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.

The Review of Scientific Instruments

|June 1, 2022

Summary

This summary is machine-generated.

A new, cost-effective pulsed X-ray diffraction (XRD) source enables detailed study of materials under high-pressure ramp compression. This advancement aids in understanding dynamic phase transitions and material properties for equation-of-state research.

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Area of Science:

Materials Science
Condensed Matter Physics
High-Pressure Physics

Background:

Pulsed-power generators enable controlled ramp compression of condensed matter.
Magnetic loading is a key technique for high-pressure equation-of-state studies.
X-ray diffraction (XRD) provides in-situ data on material behavior under dynamic compression.

Purpose of the Study:

To develop a cost-effective, compact pulsed X-ray source for XRD measurements.
To combine magnetic loading ramp compression with a short-pulse XRD diagnostic.
To enable in-situ investigation of dynamic phase transitions in materials.

Main Methods:

Utilized pulsed-power generators for magnetic loading and continuous ramp compression.
Developed and implemented a compact, pulsed X-ray source for X-ray diffraction (XRD).
Performed XRD measurements on ramp-compressed samples of Zirconium (Zr), Aluminum (Al), and Cadmium Sulfide (CdS).

Main Results:

Evaluated lattice compression in Zr and Al under dynamic loading.
Captured signatures of phase transitions in CdS using the new XRD diagnostic.
Demonstrated the capability for in-situ analysis of dynamic phase transitions.

Conclusions:

The combination of magnetic ramp compression and pulsed XRD is a powerful tool for dynamic materials research.
This cost-effective diagnostic enables detailed investigation of high-pressure material behavior.
The technique is critical for understanding in-situ dynamic phase transitions relevant to equation-of-state studies.