TY - CHAP
T1 - Melting of rare gas solids Ar, Kr, Xe at high pressures and fixed points in the P-T plane
AU - Jephcoat, Andrew P.
AU - Besedin, Stanislav P.
N1 - Funding Information:
Acknowledgments. We thank anonymous reviewers for constructive comments. Work supported byTheRoyal Society (London) and NERC Grant Numbers GR3/07673A and GR9/1570A. SPB acknowledges The Royal Society for support under a FSU Research Fellowship.
Funding Information:
We thank anonymous reviewers for constructive comments. Work supported by The Royal Society (London) and NERC Grant Numbers GR3/07673A and GR9/1570A. SPB acknowledges The Royal Society for support under a FSU Research Fellowship.
Publisher Copyright:
© 1998 by the American Geophysical Union.
PY - 1997
Y1 - 1997
N2 - We present melting temperatures determined at several pressures for solid argon, krypton, and xenon up to 47, 18, and 12 GPa respectively. At these pressures the observed melting temperatures rise to 2790±150 K for argon, 2175±150 K for krypton, and 2054±150 K for xenon. These data suggest that rare gas solids (RGS) melt at high temperatures relative to other classes of materials with increasing pressure. The argon melting temperatures are consistent with both empirical and theoretical predictions. Within experimental error, the melting curves for Ar and Kr are consistent with the Simon-Glatzel (SG) expression for the melting curve obtained at lower pressures. For xenon, the data indicate that melting occurs at lower temperatures than predicted by an SG relation based on melting data to 0.65 GPa, but above the melting curve expected from a corresponding-states scaling of the internally consistent melting curves of both Ne and Ar. In addition to the intersection of the argon and iron (Ar-Fe) melting curves in the range 42-47 GPa and 2750±150 K, the experiments suggest an intersection of the Kr-Fe melting curves near 23 GPa and 2300±150 K and of the Xe-Pt curves in the range 12-15 GPa and 2300±150 K.
AB - We present melting temperatures determined at several pressures for solid argon, krypton, and xenon up to 47, 18, and 12 GPa respectively. At these pressures the observed melting temperatures rise to 2790±150 K for argon, 2175±150 K for krypton, and 2054±150 K for xenon. These data suggest that rare gas solids (RGS) melt at high temperatures relative to other classes of materials with increasing pressure. The argon melting temperatures are consistent with both empirical and theoretical predictions. Within experimental error, the melting curves for Ar and Kr are consistent with the Simon-Glatzel (SG) expression for the melting curve obtained at lower pressures. For xenon, the data indicate that melting occurs at lower temperatures than predicted by an SG relation based on melting data to 0.65 GPa, but above the melting curve expected from a corresponding-states scaling of the internally consistent melting curves of both Ne and Ar. In addition to the intersection of the argon and iron (Ar-Fe) melting curves in the range 42-47 GPa and 2750±150 K, the experiments suggest an intersection of the Kr-Fe melting curves near 23 GPa and 2300±150 K and of the Xe-Pt curves in the range 12-15 GPa and 2300±150 K.
UR - http://www.scopus.com/inward/record.url?scp=2142773513&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=2142773513&partnerID=8YFLogxK
U2 - 10.1029/GM101p0287
DO - 10.1029/GM101p0287
M3 - Chapter
AN - SCOPUS:2142773513
SN - 9780875900834
T3 - Geophysical Monograph Series
SP - 287
EP - 296
BT - Properties of Earth and Planetary Materials at High Pressure and Temperature, 1998
A2 - Manghnani, Murli H.
A2 - Yagi, Takehiko
PB - Blackwell Publishing Ltd
ER -