Pyrolysis-gas chromatography of carbonate apatites used for sintering

Journal of Biomedical Materials Research
Y DoiY Suwa

Abstract

Gas chromatography was employed to quasi-continuously determine the amount of carbon dioxide that evolved from carbonate apatite specimens during sintering. Assuming that the carbonate in the specimens decomposed to carbon dioxide on a mole-for-mole basis, the determination of the carbon dioxide evolved allowed for the determination of the amount of carbonate that remained in the specimens during different stages of sintering. Previously, this measurement could be carried out only after sintering was completed. Comparison of data obtained from specimens compacted isostatically at 600 MPa for sintering with powder specimens indicated that the amount of carbonate remaining in the sintered apatite mass strongly depended on heating rates, heating temperatures, and holding-time intervals.

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Citations

Jan 5, 2002·Journal of Biomedical Materials Research·Iain R Gibson, William Bonfield
Jun 21, 2005·Journal of Materials Science. Materials in Medicine·Y MizutaniM Nogami
Jan 24, 2007·Journal of Materials Science. Materials in Medicine·Yu SogoRacquel Z LeGeros
Jan 1, 1996·Journal of Biomaterials Science. Polymer Edition·S VijayasekaranI L McAllister
Mar 23, 2007·Journal of Biomedical Materials Research. Part a·Xingyuan GuoZhijian Shen
Mar 10, 1998·Journal of Biomedical Materials Research·Y DoiY Iwayama

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