Calcium phosphate ceramics (hydroxyapatite (HA) and calcium phosphate tribasic (CPT)) used in orthopedic instruments, dental implants, hip and knee prosthesis are calcium phosphate based bioceramics materials. Calcium phosphate ceramics, an alternative instead of bone meal, are commonly used due to their bioactive property. Also, polyvinyl alcohol (PVA) is biocompatible polymeric material with suitable mechanical properties which is used in biomedical areas. Within the scope of this work, the influence of ZnO and PVA on the physical and mechanical properties of two different mineralogical characteristics of calcium phosphate ceramics (HA and CPT) was investigated. For this purpose, spray drying method was used to prepare ZnO added HA-PVA and CPT-PVA composite powders. Furthermore, the spray dried composite powders were thermally treated at different temperatures. The effects of additions on microstructural development against thermal treatment of the composite powders prepared were investigated with scanning electron microscopy (SEM), X-ray diffraction analysis (XRD) and microhardness tests
Calcium phosphate ceramics (hydroxyapatite (HA) and calciumphosphate tribasic (CPT)) used in orthopedic instruments, dental implants, hipand knee prosthesis are calcium phosphate based bioceramics materials.Calcium phosphate ceramics, an alternative instead of bone meal, are commonlyused due to their bioactive property. Also, polyvinyl alcohol (PVA) isbiocompatible polymeric material with suitable mechanical properties which isused in biomedical areas. Within the scope of this work, the influence of ZnOand PVA on the physical and mechanical properties of two differentmineralogical characteristics of calcium phosphate ceramics (HA and CPT) wasinvestigated. For this purpose, spray drying method was used to prepare ZnOadded HA-PVA and CPT-PVA composite powders. Furthermore, the spray driedcomposite powders were thermally treated at different temperatures. Theeffects of additions on microstructural development against thermal treatmentof the composite powders prepared were investigated with scanning electronmicroscopy (SEM), X-ray diffraction analysis (XRD) and microhardness tests.