Mechanism of the Body-Centered Cubic—Hexagonal Close-Packed Phase Transition in Iron
- 6 November 1987
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 238 (4828) , 780-783
- https://doi.org/10.1126/science.238.4828.780
Abstract
The transition from body-centered cubic to hexagonal close-packed phase in iron has been studied in a diamond anvil cell with synchrotron radiation. The hexagonal close-packed phase, when it first appears, has a ratio of lattice parameters that is significantly larger than normal. This is attributed to a displacive mechanism that causes a distortion of the hexagonal close-packed structure in a body-centered cubic matrix. The hexagonal close-packed phase adjacent to a boundary with the body-centered cubic phase is stretched in the c direction and compressed in the a direction when it first forms.Keywords
This publication has 12 references indexed in Scilit:
- Pressure‐temperature‐volume relationship for hexagonal close packed iron determined by synchrotron radiationJournal of Geophysical Research, 1987
- Static compression of iron to 78 GPa with rare gas solids as pressure‐transmitting mediaJournal of Geophysical Research, 1986
- The equation of state of the gold calibration standardJournal of Applied Physics, 1984
- Investigation of the mechanism of the olivine‐spinel transition in fayalite by synchrotron radiationJournal of Geophysical Research, 1983
- X-ray energy-dispersive diffractometry using synchrotron radiationJournal of Applied Crystallography, 1977
- High-Pressure α⇄ε Martensitic Transformation in IronJournal of Applied Physics, 1971
- Effect of Pressure on Crystal Structure and Lattice Parameters of Iron up to 300 kbarJournal of Applied Physics, 1967
- Pressure—Temperature Phase Diagram of Iron to 200 kbar, 900°CJournal of Applied Physics, 1965
- High-Pressure Polymorph of IronScience, 1964
- Temperature Dependence of Shock-Induced Phase Transformations in IronJournal of Applied Physics, 1962