Published May 13, 2005
| Version v1
Journal article
Melting of Dense Sodium
Creators
- 1. Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road N.W., Washington D.C. 20015 (United States)
- 2. HPCAT, Carnegie Institution of Washington, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
Description
High-pressure high-temperature synchrotron diffraction measurements reveal a maximum on the melting curve of Na in the bcc phase at ∼31 GPa and 1000 K and a steep decrease in melting temperature in its fcc phase. The results extend the melting curve by an order of magnitude up to 130 GPa. Above 103 GPa, Na crystallizes in a sequence of phases with complex structures with unusually low melting temperatures, reaching 300 K at 118 GPa, and an increased melting temperature is observed with further increases in pressure
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 94
- Journal Issue
- 18
- Journal Page Range
- p. 185502-185502.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37012176
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BCC LATTICES; FCC LATTICES; MELTING; MELTING POINTS; PRESSURE RANGE GIGA PA; SODIUM; SYNCHROTRONS; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; X-RAY DIFFRACTION
- Descriptors DEC
- ACCELERATORS; ALKALI METALS; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; CYCLIC ACCELERATORS; DIFFRACTION; ELEMENTS; METALS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; PRESSURE RANGE; SCATTERING; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE
Optional Information
- Notes
- (c) 2005 The American Physical Society