The X-ray diffraction showed that all the solid samples were pure
apatite with crystallizing in the hexagonal system [P6.sub.3]/m, which was confirmed by comparing with the JCPDS reference for cadmium hydroxyapatite (00-014-0302) (Figure 1).
Time-dependent luminescence measurements show a bi-exponential decay behaviour for each investigated [Eu.sup.3+] doped
apatite, which can be explained by the two distinct sites occupied by [Eu.sup.3+] within the
apatite structure (see Fig.
Only
apatite present in minor amounts and usually forming grains < 0.2 mm (occasionally up to 1 mm) in size is described.
Source of trace elements in human body is via ingestion of food or on exposure to the environment, incorporated into the
apatite structure of the enamel.
Bertran, "
Apatite bone cement reinforced with calcium silicate fibers," Journal of Materials Science: Materials in Medicine, vol.
The
apatite used in this work was obtained from Hazm Al-jalamid area, northern Saudi Arabia.
These properties confirmed the samples were
apatite (cf.
The growth of
apatite on TNTA and Zn-TNTA specimens was studied by in-vitro immersion studies in Hank's solution for a period of 14 days.
The scleractinian coral genus Goniopara, which possesses a microstructure resembling that of cancellous bone, has been converted to hydroxy
apatite [Coralline Hydroxy
Apatite Goniopora (CHAG)], chiefly for use as an alternative to autogenous grafting in the management of residual subchondral osseous defects following elevation of depressed articular fragments of epiphyseal-metaphyseal long bone fractures.
Lu-Hf isotope systematics of fossil biogenic
apatite and their effects on geochronology.
1), we used the
apatite fission-track (AFT) geochronology technique.