L. Leroux et Jl. Lacout, Preparation of calcium strontium hydroxyapatites by a new route involving calcium phosphate cements, J MATER RES, 16(1), 2001, pp. 171-178
A new route, based on the use of ionic calcium phosphate cements, has been
developed to synthesize hydroxyapatite. Cements were prepared from tetracal
cium phosphate, alpha -tricalcium phosphate, phosphoric acid, strontium nit
rate, and water. They were then mixed and shaped. Cements with various amou
nts of strontium and different (Ca + Sr)/P atomic ratios were prepared. All
the materials obtained were coherent and solid. When the amount of stronti
um was low, mixed hydroxyapatite was obtained at low temperatures. Mixed ca
lcium strontium apatite was obtained after heating. This original method ca
n be of interest in various fields such as biomaterials or the storage of r
adioactive waste.