High-resolution transmission electron microscopy of pressure-amorphized α-quartz
- 28 December 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (26), 3751-3753
- https://doi.org/10.1103/physrevlett.69.3751
Abstract
α-quartz becomes x-ray amorphous when compressed, at ambient temperature, by pressures of 25 to 30 GPa. [Hemley et al. Nature 334, 5 (1988)]. The relationship between pressure-amorphized and melt-quenched silica is of great interest. The most fundamental characteristic of melt-quenched silica is its lack of periodicity at the atomic level. We report here that high-resolution electron microscopy shows that α-quartz, pressure amorphized at 30.5 GPa is, as is conventional melt-quenched silica, amorphous at the atomic level.Keywords
This publication has 26 references indexed in Scilit:
- Observation and explanation of the reversible pressure-induced amorphization of Ca(/Physical Review B, 1992
- Pressure-induced amorphization and reduction ofT-Physical Review Letters, 1992
- Antiferromagnetism in Pressure-Amorphized Fe 2 SiO 4Science, 1992
- Memory Glass: An Amorphous Material Formed from AlPO 4Science, 1990
- Static compression of Ca(OH)2 at room temperature: Observations of amorphization and equation of state measurements to 10.7 GPaGeophysical Research Letters, 1990
- Static amorphization of anorthite at 300 K and comparison with diaplectic glassNature, 1989
- Pressure-induced amorphization of crystalline silicaNature, 1988
- Pressure-induced noncrystalline phase ofPhysical Review B, 1988
- The pressure-induced metallic amorphous state of SnI4. I. A novel crystal-to-amorphous transition studied by X-ray scatteringJournal of Physics C: Solid State Physics, 1985
- High resolution imaging of amorphous materialsNature, 1979