Metaloxide Nanomaterials and Nanocomposites of Ecological Purpose

Figure 7

Bulk ZrO₂ crystals of various polymorphic modifications: cubic (a), tetragonal (b), and monoclinic (c). The most stable faces (101) (d) and (001) (e) on the t-ZrO₂ surface. White balls—oxygen; gray—zirconium [77].

(a)

(b)

(c)

(d)

(e)