Question

5. On the basis of crystal structure, compute the theoretical density for Zirconium Oxide (ZrO2) seen below. The red large spheres represent oxygen anions and the green small spheres, zirconium cations. Zirconium dioxide exists as, a monoclinic structure at room temperature (a = 5.80 Aº, b= 4.84 Aº, c = 5.01 Aº), a tetragonal structure at a higher temperature (a = 5.14 Aº, c = 5.19 Aº), and a cubic structure at an even higher temperature (a = 5.17 Aº). How does these values compare with its measured density for each of the three cases listed above (do literature search)? (20 points) Zirconium oxide: cubic, tetragonal and monoclinic crystal lattices Zirconium Oxide: Cubic lattice structure in color

          5. On the basis of crystal structure, compute the theoretical density for Zirconium
Oxide (ZrO2) seen below. The red large spheres represent oxygen anions and the
green small spheres, zirconium cations. Zirconium dioxide exists as, a monoclinic
structure at room temperature (a = 5.80 Aº, b= 4.84 Aº, c = 5.01 Aº), a tetragonal
structure at a higher temperature (a = 5.14 Aº, c = 5.19 Aº), and a cubic structure at
an even higher temperature (a = 5.17 Aº).
How does these values compare with its measured density for each of the three
cases listed above (do literature search)? (20 points)
Zirconium oxide: cubic, tetragonal and monoclinic crystal lattices
Zirconium Oxide: Cubic lattice structure in color

5. On the basis of crystal structure, compute the theoretical density for Zirconium
Oxide (ZrO2) seen below. The red large spheres represent oxygen anions and the
green small spheres, zirconium cations. Zirconium dioxide exists as, a monoclinic
structure at room temperature (a = 5.80 Aº, b= 4.84 Aº, c = 5.01 Aº), a tetragonal
structure at a higher temperature (a = 5.14 Aº, c = 5.19 Aº), and a cubic structure at
an even higher temperature (a = 5.17 Aº).
How does these values compare with its measured density for each of the three
cases listed above (do literature search)? (20 points)
Zirconium oxide: cubic, tetragonal and monoclinic crystal lattices
Zirconium Oxide: Cubic lattice structure in color

Added by Charles G.

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