Synthesis of Ca–Mg Apatite via a Mechanochemical Hydrothermal Process View Full Text


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Article Info

DATE

2000-11

AUTHORS

Jiefan Liao, Kenji Hamada, Mamoru Senna

ABSTRACT

Mixtures of calcium and magnesium hydroxides and calcium dihydrogenphosphate in various molar ratios were ground in water with a fine grinding machine, which features multiring grinding media. Mechanochemical amorphization of the mixtures occurs quickly by grinding. The mixtures, after grinding for 5, 20, and 60 min, were then subjected to hydrothermal treatment at 573 K for 24 h. The influence of Mg/(Mg + Ca) molar ratio on the thermal behavior of the mechanically activated powders and the structure of the final products has been investigated. The microhomogeneity of Mg, Ca, and P elements on the samples is enhanced by the mechanochemical treatment. A shift in the X-ray diffraction peaks was observed among the final products with different grinding times, presumably due to a partial substitution of calcium by magnesium. More... »

PAGES

305-311

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/a:1011342427619

DOI

http://dx.doi.org/10.1023/a:1011342427619

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1031135629


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