Abstract
ABSTRACTDiode laser source was successfully employed for the fabrication of joints comprising nanocomposites of biomedical-grade UHMWPE and small amounts of carbon nanoparticles. The joint with 0.016 wt% of filler exhibited mechanical shear strength of 169N and a light-white color, close to the typical milk-white color of polyethylene. A morphological study of the welded area had been performed. The laser energy produced a thermal effect on the heat-altered zone, thereby smoothening out the surface at a depth of about 1.5 mm. Moreover, surface roughness decreased and the permeability of the joint to biological fluids was enhanced.
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