Exposure of a falling stream of 1 μm average size α-quartz particles to a continuous wave or pulsed CO2 laser beam in air resulted in the formation of a complete series of high-pressure phases of silica: coesite, stishovite, and apparently even denser forms with α-PbO2 and Fe2N structures. Since the laser exposure technique works with the carbon black to diamond transition, the technique is confirmed as a simple and generally applicable means to achieve the same effects as exposure to several hundred kilobars pressure.
|Original language||English (US)|
|Number of pages||3|
|Journal||Applied Physics Letters|
|State||Published - Dec 1 1988|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)