Research Information System
IV. Uluslararası Seramik, Cam, Emaye, Sır ve Boya Kongresi (SERES'18), Eskişehir, Turkey, 10 - 12 October 2018, pp.554, (Summary Text)
Hydroxyapatite (Ca10(PO4)6(OH)2, HA) is the mineral constituent of bone and teeth. Production of HA in different forms like powders, fibers, granules etc. is important for curing or renovating operations of the damaged or lost hard tissues. At this point, preparation of patient-specific parts attracts attention in terms of not only reducing the healing duration but also improving the recovery process of the tissue. Rapid prototyping (RP) techniques present the chance of achieving parts with the required geometrical properties by using different precursors like metals, polymers and so on for several fields such as architecture, aviation, automotive, etc. Biomedical market also take place among these application areas and researches on obtaining implants, prostheses and artificial organs through the RP approach
are daily increasing. Three dimensional (3d) printing is one type of RP systems and can be utilized for producing parts from powder form materials. In this work, HA powders were synthesized considering the wet chemical precipitation principle which can be described as an ideal way to attain HA powders in large amounts economically. Process parameters are pretty essential on the features of the obtained particles and therefore, present work focused on the acid-alkaline (for this research calcium hydroxide-phosphoric acid) reaction temperature, acid addition rate and heat treatment temperature. HA structures were 3d-printed by using the mentioned HA powders and the optimum process parameters that are proper for the powders which can be employed in 3d printing devices were investigated.