Synthesis, structural and magnetic properties of the nanocomposite Fe63B23Nd7Y3Nb3Cr1 magnets

► Synthesis of Fe63B23Nd7Y3Nb3Cr1 amorphous sheets by copper mold injection casting technique. ► Development of high coercivity nanocomposite permanent magnet based on Fe63B23Nd7Y3Nb3Cr1 alloy. ► Microstructural and magnetic properties are affected by alloy constitution magnetic phases. ► Magnet exhibited promising magnetic properties such as: jHc of 1119 kA/m, Br of 0.44 T, (BH)max of 55 kJ/m3.