Assertion: periclase's amount | /r/CapableOf | exceed 0.5 wt%
Facets:
Source sentences:
text: (1)The lattice constant of CaO in MgO-CaO materials increases with the addition of CeO 2 , when the amount of addition exceeds 0.5 wt%, the lattice constant starts to decrease.(2)The addition of CeO 2 increases the vacancy concentration of Ca2+ and accelerates the diffusion of Ca2+, contributing to the sintering densification of materials.