MATERIALS FOR ORTHOPEDIC APPLICATIONS - Advanced Biomaterials: Fundamentals, Processing, and Applications - page 77

TABLE 3.5. Friction and Wear Properties of Investigated Biocomposites Compression Moulded Under Optimized Processing Conditions
(130 °C, 0.5 h, 5 ton load). The Details of the Tribological Properties Can be Found Elsewhere

10 − 6 m m 3 /Nm)

Sample Designation Steady state COF Wear rate ( ×

Counterbodies Zirconia Steel Alumina Zirconia Steel Alumina

Environment Air SBF Air SBF Air SBF Air SBF Air SBF Air SBF

HDPE 0.05 0.04 0.09 0.07 0.07 0.05 13.8 ± 0.5 8.1 ± 0.2 25.2 ± 0.5 11.5 ± 0.2 8.9 ± 0.3 8.3 ± 0.3

HDPE - HAp (20 vol%) 0.08 0.07 0.09 0.08 0.08 0.05 7.1 ± 0.4 4.9 ± 0.4 9.5 ± 0.4 7.8 ± 0.4 4.9 ± 0.2 4.6 ± 0.2

HDPE - Al 2 O 3 (20 vol%) 0.12 0.06 0.13 0.09 0.13 0.07 4.3 ± 0.6 2.3 ± 0.3 8.7 ± 0.6 4.6 ± 0.3 4.2 ± 0.2 3.3 ± 0.2

HDPE - HAp (20 vol%) -
Al 2 O 3 (20 vol%)

0.11 0.05 0.13 0.09 0.12 0.11 1.8 ± 0.4 1.1 ± 0.7 3.9 ± 0.4 2.3 ± 0.7 0.7 ± 0.1 0.6 ± 0.1

HDPE - Al 2 O 3 (40 vol%) 0.15 0.07 0.15 0.11 0.16 0.12 0.9 ± 0.5 0.2 ± 0.4 2.8 ± 0.5 1.8 ± 0.4 0.3 ± 0.1 0.1 ± 0.1

HDPE - HAp (40 vol%) 0.09 0.07 0.11 0.09 0.09 0.11 3.9 ± 0.3 3.4 ± 0.6 6.6 ± 0.3 4.9 ± 0.6 2.5 ± 0.2 3.0 ± 0.2

[94] .