Generation of megabar static pressures in solid hydrogen

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Authors:Mao, H. K.; Bell, P. M.
Author Affiliations:Primary:
Carnegie Inst., Washington, DC, United States
Volume Title:Year Book - Carnegie Institution of Washington
Source:Year Book - Carnegie Institution of Washington, Vol.81, p.434-436. Publisher: Carnegie Institution of Washington, Washington, DC, United States. ISSN: 0069-066X
Publication Date:1982
Note:In English. 2 refs.; illus.
Summary:Difficulties in subjecting hydrogen to 1 Mbar P in the diamond-window, static high-P cell result from the high compressibility of solid hydrogen. By increasing the number of ruby crystals routinely included for pressure calibration, reducing the diameter of the sample chamber, and bevelling the diamond cutlet surfaces, 1.12 Mbar was achieved. Although the bevelled diamonds did not fail on pressurization, ring cracks developed on depressurization. That the hydrogen remained transparent suggests that the metallic transition lies above 1.12 Mbar. [K.F.]
Subjects:Geochemistry; High pressure; Hydrogen; Phase equilibria; Pressure
Abstract Numbers:83M/4409
Record ID:1983030734
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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