TY  - JOUR
AU  - Ehrenreich-Petersen, Emma
AU  - Massani, Bernhard
AU  - Engler, Thea
AU  - Pardo, Olivia
AU  - Glazyrin, Konstantin
AU  - Giordano, Nico
AU  - Hagemann, Johannes
AU  - Sneed, Daniel
AU  - Fedotenko, Timofey
AU  - Campbell, Daniel
AU  - Wendt, Mario
AU  - Wenz, Sergej
AU  - Schroer, Christian
AU  - Trabs, Mathias
AU  - Mcwilliams, Ryan Stewart
AU  - Liermann, Hanns-Peter
AU  - Jenei, Zsolt
AU  - O’Bannon, Earl F.
TI  - X-ray Phase Contrast Imaging and Diffraction in the Laser-heated Diamond Anvil Cell: A case study on the high-pressure melting of Pt
JO  - Results in Physics
VL  - 69
SN  - 2211-3797
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - PUBDB-2024-07923
SP  - 108132
PY  - 2025
AB  - Melting temperatures of materials at high-pressure are one of the key physical properties that can be measured. However, large discrepancies in high-pressure melt lines exist between different experimental and theoretical approaches. In this paper, we present a novel approach for melting determination at high pressure where time-resolved synchrotron X-ray phase contrast imaging is used to observe the solid to liquid phase transition in laser heated samples in the diamond anvil cell along with simultaneous X-ray diffraction. Optical radiometric temperature measurements are correlated with the observed phase boundaries determined from X-ray phase contrast images and structural information from X-ray diffraction patterns to determine the melting temperature. We benchmarked this new technique with experiments on the high-pressure melting of platinum (Pt). Our new Pt melting results are compared with several recent studies on the high pressure melt line of Pt which utilized different techniques to determine melting. The technique can readily be applied to other materials and offers great potential for the determination of accurate and precise melting temperatures.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1016/j.rinp.2025.108132
UR  - https://bib-pubdb1.desy.de/record/619818
ER  -