Table 1 Experimental material.

From: Preparation and research of new black zirconia ceramics

Chemical formula

Relative molecular mass

Purity

Manufacturer

TiO2

79.86

99.9%

Aladdin

NiO

74.71

99.9%

Aladdin

Al2O3

101.96

99.9%

Aladdin

ZrO2

123.22

99.9%

Aladdin

Fe2O3

159.69

99.99%

Aladdin

Y2O3

225.81

99.99%

Aladdin