Yttria-stabilized zirconia is known to not be completely stabilized in the pure cubic YSZ phase up to temperatures above 1000 °C (Ref. and publications therein), commonly used abbreviations in conjunction with yttria-stabilized zirconia are: The thermal expansion coefficients depends on the modification of zirconia as follows: By the addition of yttria to pure zirconia (e.g., fully stabilized YSZ) Y ions replace Zr on the cationic sublattice. Thereby, oxygen vacancies are generated due to charge neutrality: formula_4 with formula_5, meaning two Y ions generate one vacancy on the anionic sublattice. This facilitates moderate conductivity of yttrium stabilized zirconia for O ions (and thus
Zirconium(IV) iodide Zirconium(IV) iodide Zirconium(IV) iodide is the chemical compound with the formula ZrI. It is the most readily available iodide of zirconium. It is an orange-coloured solid that degrades in the presence of water.The compound was once prominent as an intermediate in the purification of zirconium metal. Like most binary metal halides, it adopts a polymeric structure. As characterized by X-ray crystallography, the compound exists as a polymer consisting of octahedral Zr(IV) centers, each with a pair of terminal iodide ligands and a four doubly bridging iodide ligands. The Zr-I distances of 2.692 (terminal) and 3.030 Å This compound is volatile,