Wear-Resistant Ultrahigh-Molecular-Weight Polyethylene-Based Nano- and Microcomposites for Implants

Figure 4

Wear intensity (𝐼) of UHMWPE specimens: pure (1) andN⁺ion implanted with doses of 0.5 (2), 1 (3), 2⋅10¹⁷(4); nanocomposites UHMWPE +0.5 wt.% HA in the initial state (5) and implanted one with doses 0.5 (6), 1 (7), 2⋅10¹⁷N⁺(8); microcomposites UHMWPE +20 wt.% HA without surface treatment (9) and implanted ones with doses of 0.5 (10), 1 (11), 2⋅10¹⁷N⁺(12) at the steady-state wearing stage.