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一种用于快速差示扫描量热法与X射线光子相关光谱联用的新型实验装置。

A new experimental setup for combined fast differential scanning calorimetry and X-ray photon correlation spectroscopy.

作者信息

Martinelli Alessandro, Baglioni Jacopo, Sun Peihao, Dallari Francesco, Pineda Eloi, Duan Yajuan, Spitzbart-Silberer Tobias, Westermeier Fabian, Sprung Michael, Monaco Giulio

机构信息

University of Padova, Department of Physics and Astronomy `Galileo Galilei', Via F. Marzolo 8, 35131 Padova, Italy.

Department of Physics, Institute of Energy Technologies, Universitat Politècnica de Catalunya - BarcelonaTech, 08019 Barcelona, Spain.

出版信息

J Synchrotron Radiat. 2024 May 1;31(Pt 3):557-565. doi: 10.1107/S1600577524002510. Epub 2024 Apr 24.

DOI:10.1107/S1600577524002510
PMID:38656773
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11075717/
Abstract

Synchrotron-radiation-based techniques are a powerful tool for the investigation of materials. In particular, the availability of highly brilliant sources has opened the possibility to develop techniques sensitive to dynamics at the atomic scale such as X-ray photon correlation spectroscopy (XPCS). XPCS is particularly relevant in the study of glasses, which have been often investigated at the macroscopic scale by, for example, differential scanning calorimetry. Here, we show how to adapt a Flash calorimeter to combine XPCS and calorimetric scans. This setup paves the way to novel experiments requiring dynamical and thermodynamic information, ranging from the study of the crystallization kinetics to the study of the glass transition in systems that can be vitrified thanks to the high cooling rates reachable with an ultrafast calorimeter.

摘要

基于同步辐射的技术是研究材料的有力工具。特别是，高亮度光源的出现为开发对原子尺度动力学敏感的技术（如X射线光子相关光谱学（XPCS））开辟了可能性。XPCS在玻璃研究中尤为重要，玻璃通常在宏观尺度上通过差示扫描量热法等方法进行研究。在这里，我们展示了如何改装一台快速量热仪，以结合XPCS和量热扫描。这种装置为需要动力学和热力学信息的新型实验铺平了道路，从结晶动力学研究到对那些借助超快量热仪可实现的高冷却速率而能被玻璃化的体系中的玻璃化转变的研究。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/cd341a58ab6b/s-31-00557-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/59c417ec1680/s-31-00557-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/b255a98157ed/s-31-00557-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/e767ea0a1da5/s-31-00557-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/2000011581e1/s-31-00557-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/efde158273f9/s-31-00557-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/cd341a58ab6b/s-31-00557-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/59c417ec1680/s-31-00557-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/b255a98157ed/s-31-00557-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/e767ea0a1da5/s-31-00557-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/2000011581e1/s-31-00557-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/efde158273f9/s-31-00557-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b896/11075717/cd341a58ab6b/s-31-00557-fig6.jpg

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