English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The 3.65 Å phase [MgSi(OH) 6 ] is likely to be formed by decomposition of the hydrous 10 Å phase [Mg 3 Si 4 O 10 (OH) 2 ·H 2 O] at pressures of 9-10 GPa. In this study, we use a combination of X-ray diffraction and first-principles simulations to constrain the equation of state and elasticity of the 3.65 Å phase. We find that the equation of state results for the 3.65 Å phase, from X-ray diffraction data are well represented by a third-order Birch-Murnaghan formulation, with K 0  = 83.0 (±1.0) GPa, K 0 ′ = 4.9 (±0.1), and V 0  = 194.52 (±0.02) Å 3 . Based on the first-principles simulations, the full single-crystal elastic constant tensor with monoclinic symmetry shows significant anisotropy with the compressional c 11  = 156.2 GPa, c 22  = 169.4 GPa, c 33  = 189.3 GPa, the shear components c 44  = 55.9 GPa, c 55  = 58.5 GPa, c 66  = 74.8 GPa, and c 46  = 1.6 GPa; the off-diagonal components c 12  = 38.0 GPa, c 13  = 26.5 GPa, c 23  = 22.9 GPa, c 15  = 1.5 GPa, c 25  = 1.5 GPa, and c 35  = -1.9 GPa at zero pressure.

Equation of state and elasticity of the 3.65 Å phase: Implications for the X-discontinuity