Abstract
Ceramics biomaterials are useful as implant materials in orthopedic surgery. In this study, porous HA(hydroxyapatite)/-TCP(tricalcium phosphate) composite biomaterials were successfully fabricated using HA/-TCP powders with 10-30 wt% as a space holder(SH) and as a foaming agent, and MgO powder as a binder. The HA/-TCP powders were consolidated by spark plasma sintering(SPS) process at under 20 MPa conditions. The effect of SH content on the pore size and distribution of the HA/-TCP composite was observed by scanning electron microscopy(SEM) and a microfocus X-ray computer tomography system(SMX-225CT). These microstructure observations revealed that the volume fraction of the pores increased with increasing SH content. The pore size of the HA/-TCP composites is about . The relative density of the porous HA/-TCP composite increased with decreasing SH content. The porous HA/-TCP composite fabricated with 30%SH exhibited an elastic modulus similar to that of cortical bone; however, the compression strength of this composite is higher than that of cortical bone.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
