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Nine Fe–HA composites were fabricated via powder metallurgy method by varying the amount (2.5, 5, 10wt%) and particle size (<1μm, 1–10μm, 100–200μm) of hydroxyapatite (HA) as a bioactive phase in the iron (Fe) matrix. X-ray diffraction did not detect any phase changes in HA after the sintering process. Uniaxial tensile tests measured the strengths of the composites. Polarization and immersion tests...
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