A multipurpose miniature piston-cylinder diamond-anvil cell for pressures beyond 100 GPa

G. Yu Machavariani, M. P. Pasternak, G. R. Hearne, G. Kh Rozenberg

Research output: Contribution to journalArticlepeer-review

Abstract

A miniature piston-cylinder diamond-anvil cell (DAC) was constructed and tested for pressure operation at and beyond 100 GPa. Its advantages compared to other piston-cylinder DACs are its compactness (22-mm diam by 21-mm high), self-contained force generator, and simple way of operation. Tungsten carbide backing plates are used for supporting the anvils; one with a hemispherical shape allowing for parallelism alignment, and one with a flat circular shape allowing for lateral alignment of the anvils' culets. The force is generated by six M3 Allen screws and is conveyed to the piston via force rings. Pressures to 130 GPa were achieved with beveled culets having 300-μm flats and Re gaskets. Design features, mode of operation, and performance are described. The latter has been demonstrated for the particular case of Mössbauer spectroscopy in La57FeO3.

Original languageEnglish
Pages (from-to)1423-1425
Number of pages3
JournalReview of Scientific Instruments
Volume69
Issue number3
DOIs
StatePublished - Mar 1998

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