Sintering Behavior of Magnesium-Substituted Fluorapatite Powders Prepared by Hydrothermal Method

Magnesium-substituted fluorapatite powders were synthesized by hydrothermal method, and their sintering behavior was investigated by dilatometry in the temperature range 25–1100°C. Analysis of the obtained powders by X-ray diffraction and 31P NMR spectroscopy showed that the powders consisted of a single apatite phase and no amorphous phase has been formed. Compared to pure fluorapatite, the shrinkage of the substituted samples occurred in two steps and the temperature at which the sintering rate was maximum is lower. In addition, the shrinkage was interrupted by an expansion of the samples due to the formation of a liquid phase. The latter phase led to the crystallization of needle-crystals by a dissolution-diffusion-reprecipitation process.

• Publication year

  2011

• Venue

  Bioinorganic Chemistry and Applications

• Publication date

  2011-03-15

• Fields of study

  Medicine, Materials Science, Chemistry

• Identifiers
  DOI 10.1155/2011/453759PMID 21577315PMCID 3092508
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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