We report on a series of experiments that use high power lasers to ramp compress aluminum al up to 475 gpa. Under this quasi isentropic compression al remains in the solid state and two solidsolid phase transformations are observed.
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Measurement of body centered cubic aluminum at 475 gpa. Under this quasi isentropic compression al remains in the solid state and two solid solid phase transformations are observed. The solid solid al phase transformations fcc hcp and hcp bcc are observed at 216 9 gpa and 321 12 gpa respectively with the bcc phase persisting to 475 gpa. We present the results of several adiabatic release measurements of aluminum from 400 1200 gpa states along the. Nanosecond in situ x ray diffraction and simultaneous velocimetry measurements were used to determine the crystal structure and pressure respectively of ramp compressed aluminum at stress states between 111 and 475 gpa. In situ x ray diffraction is performed to detect the crystal structure. In situ x ray diffraction is performed to detect the crystal structure.
This corrects measurement of body centered cubic aluminum at 475 gpa phys rev lett. 2017 oct 2711917 175702. A velocimetry diagnostic measures particle velocities in order to infer the pressure in. The solid solid al phase transformations fcchcp and hcpbcc are observed at 2169 and 32112 gpa respectively with the bcc phase persisting to 475 gpa. Measurement of body centered cubic aluminum at 475 gpa. We report on a series of experiments that use high power lasers to ramp compress aluminum al up to 475 gpa.
Measurement of body centered cubic aluminum at 475 gpa phys. 119 175702 2017 article in physical review letters 1202 january 2018 with 60 reads how we measure reads.
Gallery of Measurement Of Body Centered Cubic Aluminum At 475 Gpa
