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W-type barium ferrites doped with Gd3+, Ba1−xGdx(Zn0.3Co0.7)2Fe16O27 (x = 0, 0.05, 0.10, 0.15, 0.20), were prepared by a sol-gel method. The effects of Gd3+ substitution on their microstructure, electromagnetic properties and microwave absorptive behavior were analyzed. The XRD patterns showed the single phase of W-type barium ferrite when x ≤ 0.15. Microwave electromagnetic properties of samples...
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