Preparation of CePO₄ Modified ZrO₂ Ceramics with Different Particle Sizes and Their Mechanical Behaviors

Table 1

Relative density, hardness, and mechanical properties of the samples.

Samples (nm)	30–50 uncoated	50–100 uncoated	100–300 uncoated	300–500 uncoated	30–50 coated	50–100 coated	100–300 coated	300–500 coated
Relative density (%)	99.3	98.2	97.9	94.6	96.4	98.3	96.5	94.5
Hardness (GPa)	13.14±0.1	12.53±0.1	11.70±0.1		10.72±0.1	10.49±0.1	9.27±0.1
Flexural strength (MPa)	750±51	721±43	643±36		463±63	447±55	377±39
Fracture toughness (MPa^−2)	4.57±0.1	4.79±0.1	5.14±0.1		5.76±0.1	5.56±0.1	4.17±0.1
Machinability (m^1/210^3)	0.35	0.38	0.44		0.54	0.53	0.45