Bone mineral change during experimental calcination: an X-ray diffraction study

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Galeano, Sergio and García Lorenzo, Mari Luz (2014) Bone mineral change during experimental calcination: an X-ray diffraction study. Journal Forensic Sciences, 59 (6). pp. 1602-1605. ISSN 1556-4029

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Abstract

The effects of calcination (400-1200°C) on pig bones have been studied using powder X-ray diffraction (XRD) and secondary modifications, such as color change and weight loss. The characterisation by powder XRD confirmed the presence of the crystalline phase of hydroxyapatite, and comparison of the results obtained at different temperatures suggested that at 650°C, all the organic components and carbonate substitutions were completely removed. Accordingly, these samples were white. In addition, the crystallinity degree and the crystallite size progressively increased with the calcination temperature until 650°C, remaining stable until 1200°C. Below 650°C, bone samples presented organic compounds, resulting in background noise in the diffractogram and gray or black color. In addition, impurities in the lattice correspond to low crystallite sizes.


Item Type:Article
Uncontrolled Keywords:Burned bones; Calcination; Crystallite size; Forensic science; Hydroxyapatite; Powder X-ray diffraction.
Subjects:Sciences > Geology > Mineralogy
Sciences > Geology > Petrology
ID Code:63639
Deposited On:19 Jan 2021 09:04
Last Modified:19 Jan 2021 10:59

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