Evaluation of Mechanical Properties of PEEK HAp Bio-Composite Used in Load Bearing Bone Implants

Bio-materials which would interact with human cells are chosen based on the issues of compatibility. The materials preferred in bone repair or replacements at load bearing sites require particular attention to strength and rigidity, which should match the native tissue. Any kind of mismatch between native bone and implant would lead to adverse results such as improper bone growth leading to reoperation. Further, the bone has varied mechanical properties at different sections and is anisotropic. Present work is a manifestation of Polyetheretherketone (PEEK) and Hydroxyapatite (HAp) bio-composite mechanical properties. The composites are prepared by mixing in a ball mill followed by compression moulding, sintering and heat treatment.