Bioinorganic Preparation of Hydroxyapatite and Rare Earth Substituted Hydroxyapatite for Biomaterials Applications

Table 2

Important factors calculated from the extracted data of the XRD test.

Prepared material	Lattice parameter			Crystallite size (nm)	Lattice strain
	a (Å)	b (Å)	c (Å)
HA	9.4448	9.4448	6.8290	43.88	0.0030
Nd-Ce/HA	9.3428	9.3428	6.8057	21.84	0.0064