Peculiarities in sintering behavior of Ca-deficient hydroxyapatite nanopowders

We report unusual sintering behavior of Ca-deficient hydroxyapatite processed with different heating rates; particularly, faster heating resulted in higher densification. We hypothesize that faster heating delays formation of β-tricalcium phosphate which yields to unobstructed densification in inter...

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Bibliographic Details
Published in:Materials letters 2012-02, Vol.68, p.331-335
Main Authors: Lukic, MJ, Veselinovic, Lj, Stojanovic, Z, Macek-Krzmanc, M, Bracko, I, Skapin, S D, Markovic, S, Uskokovic, D
Format: Article
Language:English
Subjects:
Calcium phosphate
Densification
heat
Heating
Hydroxyapatite
microstructure
Nanocomposites
Nanomaterials
Nanostructure
Sintering
tricalcium phosphate
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Summary:We report unusual sintering behavior of Ca-deficient hydroxyapatite processed with different heating rates; particularly, faster heating resulted in higher densification. We hypothesize that faster heating delays formation of β-tricalcium phosphate which yields to unobstructed densification in intermediate sintering stage, allowing further tailoring of both microstructure and phase composition (hydroxyapatite/tricalcium phosphate).
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2011.10.085