Determination of Hardness and Fracture Toughness of Y-TZP Manufactured by Digital Light Processing through the Indentation Technique

Table 2

The density, grain size, and crystalline phase structure of zirconia.

Group	Density (g/cm^3)		Relative density (%)	Grain size (μm)		Crystalline phase structure	Young’s modulus (GPa)
	Mean	SD		Mean	SD		Mean	SD
DLP	6.0198	0.0213	99.0099	0.6030	0.0326	Tetragonal	221.4	2.2
MILL	6.0382	0.0115	99.3125	0.5911	0.0330	Tetragonal	225.1	3.4