The microwave combustion process (MCP) is used to synthesize Mg_1-xCa_xFe₂O₄ (0 ≤ x ≤ 0.5) spinel nanoparticles using the fuel l-arginine. Synthesized samples were examined by employing techniques such as XRD, HR-SEM, EDX, DRS-UV, TG-DTA and VSM. The XRD corroborated the constitution of the cubic spinel structure and the average crystallite size was valued to lie in the range of 16.09 to 33.10 nm. The morphology of the Mg_1-xCa_xFe₂O₄ (0 ≤ x ≤ 0.5) spinel nanoparticles was observed by HR-SEM. EDX studies confirmed the formation of spinel ferrite structure. Further bandgap values were estimated to be in the range of 1.84 eV to 2.00 eV. TG-DTA studies confirmed weight loss and exothermic transitions. The M-H loops exhibited ferromagnetic behaviour.

微波燃烧过程（MCP）用于合成的Mg _{1- X}的Ca _X的Fe ₂ ö ₄（0≤  X 使用燃料≤0.5）尖晶石纳米颗粒升精氨酸。通过使用诸如XRD，HR-SEM，EDX，DRS-UV，TG-DTA和VSM等技术检查合成的样品。XRD证实了立方尖晶石结构的组成，并且平均微晶尺寸在16.09至33.10nm范围内。Mg _{1- x} Ca _x Fe ₂ O ₄（  0≤x 通过HR-SEM观察到≤0.5）尖晶石纳米颗粒。EDX研究证实了尖晶石铁素体结构的形成。进一步的带隙值估计在1.84 eV至2.00 eV的范围内。TG-DTA研究证实了体重减轻和放热转变。MH回路表现出铁磁行为。