The increase in particle size due to pressure effects in CeO 2 nanocrystals was analyzed. The synchroton x-ray diffraction technique was used to explore the size-induced compressional effects in nanocrystalline CeO 2 to the pressure of 38 GPa. At ambient pressure CeO 2 exhibited larger cell parameters than the micro-sized samples. The results show that at critical pressure of ~20 GPa, there was weakening of the size-induced effect in CeO 2 that resulted into the weakening of elastic stiffness.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)