High-Pressure, High-Temperature Formation of Phase-Pure Monoclinic Zirconia Nanocrystals Studied by Time-Resolved in situ Synchrotron X-Ray Diffraction

摘要

Zirconia is one of the most studied metal oxides due to the important mechanical, thermal, electrical and catalytic properties and the many applications they offer. In virtually all applications of zirconia, the key challenge is to control the crystal phase, morphology, and stoichiometry in order to tailor the specific targeted properties. The thermodynamically stable crystal phase of bulk zirconia is the monoclinic structure, which transforms into the tetragonal phase at 1175℃.