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Updated: May 28, 2025
10:12
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
Published on: June 19, 2018
8.9K
Extracting accurate PDF data from in situ environment of materials using X-ray diffractometer.
Yuji Shiramata1,2, Takayuki Konya2, Kentaro Kobayashi3
1Graduate School of Natural Science and Technology, 1060, Nishikawatsu-cho, Matsue, Shimane, 690-8504, Japan.
Summary
Laboratory-based pair distribution function (PDF) analysis is reliable for studying material structures. This method effectively analyzes local structures and structural disorder, even during temperature-dependent phase transitions.
Area of Science:
- Materials Science
- Crystallography
- Condensed Matter Physics
Background:
- Pair distribution function (PDF) analysis is traditionally performed at synchrotron facilities.
- Laboratory-based equipment and cryo-furnaces for in situ temperature control are now available.
- Time-resolved PDF measurements have advanced significantly.
Purpose of the Study:
- To demonstrate the reliability of laboratory-based PDF measurements.
- To analyze the local structure of LaCu6-xAgx during a phase transition using temperature-dependent in situ PDF analysis.
- To validate laboratory-based PDF measurements against synchrotron data.
Main Methods:
- Utilized laboratory-based equipment for pair distribution function (PDF) measurements.
- Performed temperature-dependent in situ PDF analysis.
- Conducted local structure analysis on LaCu6-xAgx samples.
- Compared results with synchrotron-based measurements.
Main Results:
- Confirmed the reliability and effectiveness of laboratory-based PDF measurements.
- Successfully analyzed the local structure and phase transition in LaCu6-xAgx.
- Validated laboratory findings against synchrotron data, demonstrating consistency.
Conclusions:
- In situ PDF measurements using laboratory equipment are reliable for structural analysis.
- This technique is effective for studying structural disorder and phase transitions.
- Laboratory-based PDF analysis offers a viable alternative to synchrotron-based methods for certain applications.
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