Creep of ceramics

Influence of crystallographic structure on polarization reversal in polycrystalline ferroelectric/ferroelastic materials

“…The macroscopic effects in this regime were attributed to the progressive movement of the ferroelectric/ferroelastic domain walls. 49,50 Please note that the physical mechanisms occurring in this regime are fundamentally different from the slow deformation of a metal or a ceramic under a mechanical load, which is also termed creep (i.e., dislocation, Nabarro-Herring, or Coble creep 51 ). For the measurements with lower electric fields in Fig.…”

Experimental Investigation of the Tension and Compression Creep Behavior of Alumina-Spinel Refractories at High Temperatures

“…This methodology was applied to refractory materials by Martinez et al [6]. The one-dimensional form of the most frequently used model for secondary creep strain rate equation in the context of micromechanical models is [7]:ε…”

Revealing the Plastic Mode of Time-Dependent Deformation of a LiTaO3 Single Crystal by Nanoindentation

“…Creep resistance is essentially important to engineering materials which bear long-term elastic stress and high-temperature structures with active atomic mobility. Over the last century, evaluation of creep behavior has been on the cutting edge of mechanical characterization from both engineering requirement and scientific interests [2,3]. The testing requirements of conventional creep measurement (according to ASTM standards) are rigorous [4].…”