Rapid Analyses of Polyetheretherketone Wear Characteristics by Accelerated Wear Testing with Microfabricated Surfaces for Artificial Joint Systems

Table 1

Morphology and wear of PEEK particles in water, FBS, and glycerine.

Lubricant	Surface	Contact pressure (MPa)	Particle length (μm)	Particle width (μm)	Aspect ratio	Wear rate (mg/min)
Water	S	3.0	1.85 ± 0.80	1.22 ± 0.54	1.56 ± 0.36	0.336
		1.5	1.40 ± 0.64	0.92 ± 0.41	1.56 ± 0.39	0.023
		0.6	1.24 ± 0.54	0.85 ± 0.36	1.51 ± 0.38	0.009
	L	3.0	2.80 ± 1.53	1.65 ± 0.81	1.74 ± 0.54	0.382
		1.5	3.13 ± 1.75	1.72 ± 1.03	1.95 ± 0.73	0.185
		0.6	2.29 ± 1.31	1.06 ± 0.52	2.27 ± 1.07	0.056
FBS	S	3.0	1.29 ± 0.60	0.77 ± 0.33	1.71 ± 0.46	0.121
		1.5	0.99 ± 0.41	0.57 ± 0.23	1.77 ± 0.48	0.08
		0.6	0.81 ± 0.34	0.48 ± 0.22	1.85 ± 0.60	0.008
	L	3.0	9.06 ± 3.05	5.16 ± 2.05	1.89 ± 0.74	0.325
		1.5	6.28 ± 2.68	3.75 ± 1.57	1.75 ± 0.57	0.108
		0.6	3.77 ± 1.84	1.98 ± 1.32	1.91 ± 0.91	0.022
100% Glycerine	S	1.5	0.50 ± 0.31	0.28 ± 0.18	1.83 ± 0.63	0.002
50% Glycerine			0.82 ± 0.41	0.53 ± 0.25	1.60 ± 0.44	0.017
10% Glycerine			1.08 ± 0.59	0.73 ± 0.40	1.53 ± 0.36	0.051
100% Glycerine	L		0.65 ± 0.54	0.39 ± 0.28	1.73 ± 0.57	0.056
50% Glycerine			1.58 ± 1.22	0.91 ± 0.60	1.76 ± 0.56	0.193
10% Glycerine			2.16 ± 1.26	1.13 ± 0.62	2.02 ± 1.02	0.316