Preparation, and Structural and Magnetic Properties of Ca Substituted Magnesium Ferrite with Composition MgCa_xFe_2−xO₄ (𝑥 = 0.00, 0.01, 0.03, 0.05, 0.07)

Table 3

Lattice parameter “𝑎,” X-ray density “𝐷_𝑥,” bulk density “𝐷_𝐵,” and porosity “𝑃” for different composition.

Composition	Lattice parameter “𝑎” (Å)	X-ray density “𝐷𝑥” (gm/cm^3)	Bulk density “𝐷𝐵” (gm/cm^3)	Porosity “𝑃” (%)
MgF (Pure)	8.3848	4.5062	3.864	15
Ca 1%	8.4108	4.4610	3.598	19
Ca 3%	8.4405	4.4071	3.225	26
Ca 5%	8.4211	4.4783	3.692	17
Ca 7%	8.4046	4.4721	4.061	9