TY - JOUR
T1 - Synthetic MgAl2O4 (spinel) at high-pressure conditions (0.0001-30 GPa)
T2 - A synchrotron X-ray powder diffraction study
AU - Levy, Davide
AU - Pavese, Alessandro
AU - Hanfland, Michael
PY - 2003/1
Y1 - 2003/1
N2 - The equation of state and the structural behavior of synthetic MgAl2O4 have been investigated using synchrotron X-ray powder diffraction data collected to 30 GPa at room temperature. The Birch-Murnaghan, Vinet, and Poirier-Tarantola models have been fitted to the observed P-V data. The Birch-Murnaghan equation of state, with V0 fixed at its experimental value, yields K0 = 190.8(±1.2) GPa, K′0 = 6.77(±0.15) and K″0 = -0.075 GPa-1 (implied value). The compression of spinel occurs with a negligible change of the fractional coordinate of oxygen. Therefore the structural shrinking is a function of cell edge shortening alone. The results presented here are compared with those from the literature.
AB - The equation of state and the structural behavior of synthetic MgAl2O4 have been investigated using synchrotron X-ray powder diffraction data collected to 30 GPa at room temperature. The Birch-Murnaghan, Vinet, and Poirier-Tarantola models have been fitted to the observed P-V data. The Birch-Murnaghan equation of state, with V0 fixed at its experimental value, yields K0 = 190.8(±1.2) GPa, K′0 = 6.77(±0.15) and K″0 = -0.075 GPa-1 (implied value). The compression of spinel occurs with a negligible change of the fractional coordinate of oxygen. Therefore the structural shrinking is a function of cell edge shortening alone. The results presented here are compared with those from the literature.
UR - https://www.scopus.com/pages/publications/0037221991
U2 - 10.2138/am-2003-0112
DO - 10.2138/am-2003-0112
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AN - SCOPUS:0037221991
SN - 0003-004X
VL - 88
SP - 93
EP - 98
JO - American Mineralogist
JF - American Mineralogist
IS - 1
ER -