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 1

Variation of grain size with different composition of Ca, that is, MgCa_𝑥Fe_2−𝑥O₄ (where 𝑥 = 0.00, 0.01, 0.03, 0.05, 0.07).

Composition	Size (𝜇m)
Pure MgF	3.99
Ca 1%	3.26
Ca 3%	2.37
Ca 5%	1.67
Ca 7%	1.30