Laser-heating system for high-pressure X-ray diffraction at the Extreme Conditions beamline I15 at Diamond Light Source

Anzellini, S.; Kleppe, A.K.; Daisenberger, D.; Wharmby, M.T.; Giampaoli, R.; Boccato, S.; Baron, M.A.; Miozzi, F.; Keeble, D.S.; Ross, A.; Gurney, S.; Thompson, J.; Knap, G.; Booth, M.; Hudson, L.; Hawkins, D.; Walter, M.J.; Wilhelm, H.

doi:10.1107/S1600577518013383

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Figure 7
Evolution of the X-ray diffraction patterns of Pb with increasing temperature at P ≃ 55 GPa (λ = 0.4246 Å). The texture of the Pb sample evolves from a pure h.c.p. (a), via a coexistence region (b) to a b.c.c. structure (c). Finally, a diffuse halo (d) establishes the presence of molten Pb in the high-pressure chamber. (e) Integrated pattern before (T = 2551 K) and after the onset of melting (T ≥ 2974 K).

JOURNAL OF
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ISSN: 1600-5775

Volume 25| Part 6| November 2018| Pages 1860-1868

https://doi.org/10.1107/S1600577518013383

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