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Synthesis and Characterization of Lead Hydroxyapatite Solid Solutions at 830°C

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Abstract:

Lead hydroxyapatite (PbHAP, chemical formula Pb10(PO4)6(OH)2) has been synthesized by ceramic (solid-state reaction) and semi-ceramic (precipitation) methods. The samples were prepared through a solid-state reaction conducted at 830 °C for 60 hours, with the y values ranging from 0.95 to 1.00. We have developed and created the most efficient preparation methods. The well-known technique was used - semi-ceramic (precipitation) deposition of lead and hydroxyapatite. For this purpose, several advanced devices were used to obtain an accurate structural structure of lead hydroxyapatite compounds. It has been observed, as in the case of chemical synthesis, that the elements (lead, phosphorus, and oxygen) appear to be distributed homogeneously within the crystals, regardless of the method of composition, which indicates that the samples are homogeneous. More importantly, the "solid-state reaction" method favored a specific composition range, while the "precipitation" method performed well for other composition ranges. The above methods indicate an ideal method, according to the desired structure, that should be developed for lead hydroxyapatite, depending on its composition. This research aims to establish the first steps in developing a new method for preparing lead hydroxyapatite compounds with the desired properties to improve their purity and crystal structure for potential uses in the future.

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Periodical:

Key Engineering Materials (Volume 1026)

Pages:

101-111

DOI:

https://doi.org/10.4028/p-zj1fmK

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Online since:

October 2025

Authors:

Mohammed A.B. Abdul Jabar*

Keywords:

Apatite, Biomaterials, Diffractometer, Lead, Solid Solution, X-Ray

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