High-resolution transmission electron microscopy of pressure-amorphized -quartz

Robert R. Winters, Anita Garg, William S. Hammack

Research output: Contribution to journalArticlepeer-review


-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 -quartz, pressure amorphized at 30.5 GPa is, as is conventional melt-quenched silica, amorphous at the atomic level.

Original languageEnglish (US)
Pages (from-to)3751-3753
Number of pages3
JournalPhysical review letters
Issue number26
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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