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Influence of magnesium doping on the phase transformation temperature of β-TCP ceramics examined by Rietveld refinement

Paper ID Volume ID Publish Year Pages File Format Full-Text
12716 814 2005 6 PDF Available
Title
Influence of magnesium doping on the phase transformation temperature of β-TCP ceramics examined by Rietveld refinement
Abstract

The influence of Mg doping in Ca3(PO4)2 on the transformation temperature of β-tricalcium phosphate (β-TCP) to α-tricalcium phosphate (α-TCP) was examined. A maximum substitution by 14 mol% of Mg2+ on Ca2+ sites in the β-TCP structure was determined for powders calcinated at 1025±10 °C. X-ray powder diffraction analysis (XRPD) in combination with Rietveld method (TOPAS 2.1) was employed for quantitative phase analysis and structural refinement. The synthesized and characterized Mg-doped samples were sintered in air atmosphere in a vertical tube furnace at suitable temperatures ranging from 1460 to 1680 °C and subsequently quenched to room temperature, in order to stabilize α-TCP. The β to α transformation temperatures were determined by differential temperature analysis and XRPD analysis.

Keywords
β-TCP; α-TCP; Transformation temperature; Mg substitution; Rietveld refinement
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Influence of magnesium doping on the phase transformation temperature of β-TCP ceramics examined by Rietveld refinement
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 17, June 2005, Pages 3379–3384
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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