Studies on sintering process of synthetic hydroxyapatite.
Author(s) -
Dagmara Malina,
Kamila Biernat,
Agnieszka SobczakKupiec
Publication year - 1970
Publication title -
acta biochimica polonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.452
H-Index - 78
eISSN - 1734-154X
pISSN - 0001-527X
DOI - 10.18388/abp.2013_2071
Subject(s) - sintering , materials science , porosity , scanning electron microscope , shrinkage , microstructure , raw material , precipitation , hydroxyapatites , relative density , reagent , chemical engineering , thermogravimetric analysis , composite material , metallurgy , chemistry , calcium , physics , organic chemistry , meteorology , engineering
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.
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