Praseodymium substituted strontium W-type hexaferrites Sr_1-xPr_xZn_0.8Co_1.2Fe₁₆O₂₇ (0.00 ≤ x ≤ 0.40) were prepared via the conventional ceramic technique. XRD analysis of W-type hexaferrites with Pr content (x) of 0.00 ≤ x ≤ 0.24 shows the single W-type hexaferrite phase. However, for the W-type hexaferrites with Pr content (x) ≥ 0.32, the impurity phase (α-Fe₂O₃) is detected. FE-SEM images show that the grains are platelet-like shapes. The saturation magnetization (M_s), remanent magnetization (M_r) and magneton number (n_B) first increase with Pr content (x) from 0.00 to 0.16, and then decrease when Pr content (x) ≥ 0.16. The M_r/M_s ratio, magnetic anisotropy field (H_a), coercivity (H_c) and maximum energy product [(BH)_max] increase with Pr content (x) from 0.00 to 0.40. While the first anisotropy constant (K₁) increases with Pr content (x) from 0.00 to 0.16, and then decreases when Pr content (x) ≥ 0.16. The DC electrical resistivity (ρ) decreases with Pr content (x) from 0.00 to 0.40.

Keywords: W-type hexaferrites, Conventional ceramic technique, X-ray diffraction, Magnetic properties, Electrical resistivity