Extended Data Fig. 6: Influence of periclase volume fraction (Xv = 10−3).
From: Periclase deforms more slowly than bridgmanite under mantle conditions
Behavior for a vacancy concentration in bridgmanite of Xv = 10−3 and oxygen diffusion coefficient in periclase from Ita & Cohen14 at various pressures. Left: Effective flow stress \({\widetilde{\sigma }}_{0}\) based on four homogenization procedures: Reuss, Voigt, Hashin-Strikman (HS+) and the POSO extension of the Self-Consistent scheme (SC). Right: Relative strain-rates in bridgmanite and periclase.
