title: Studies on sintering process of synthetic hydroxyapatite.
abstract: In this study the effect of sintering process in different temperatures on microstructure and morphological properties of sintered hydroxyapatite (HAp) was investigated. HAp powder was prepared by wet precipitation method from following reagents: Ca(OH)2 + H3PO4 in an alkaline conditions. Thermal analysis (TA), X-Ray diffraction method (XRD), FT-IR spectrometry (FT-IR) and scanning electron microscopy (SEM) were used to elaborate the phase composition and properties of sintered HAp samples and raw HAp powder as well. The total and apparent density and total porosity of sintered compacts, shrinkage and weight loss during the sintering were also measured. The results show that there is a difference in sintering behavior of synthetic hydroxyapatites depending on sintering temperature. The main differences refer to the loss of mass, shrinkage, changes in porosity and density of the investigated materials.
authors.affiliation: Institute of Inorganic Chemistry and Technology, Cracow University of Technology, Kraków, Poland.
authors.forename: Dagmara
authors.initials: D
authors.lastname: Malina
authors.affiliation: Institute of Inorganic Chemistry and Technology, Cracow University of Technology, Kraków, Poland.
authors.forename: Kamila
authors.initials: K
authors.lastname: Biernat
authors.affiliation: Institute of Inorganic Chemistry and Technology, Cracow University of Technology, Kraków, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Sobczak-Kupiec
mesh_terms: D002126:Calcium Hydroxide / Q000737:chemistry; D017886:Durapatite / Q000737:chemistry*; D006358:Hot Temperature; D008855:Microscopy, Electron, Scanning; D010756:Phosphoric Acids / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D010756:Phosphoric Acids; D017886:Durapatite; C030242:phosphoric acid; D002126:Calcium Hydroxide