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J. Korean Ceram. Soc. > Volume 13(4); 1976 > Article
Journal of the Korean Ceramic Society 1976;13(4): 5.
Hexagonal Ferrite 에 관한 연구(II) Ferroxplana $Co_{1-x}Zn_xZ$($BA_3Co_{2(1-x)}Zn_{2x} Fe_{24}O_{41}$)의 Magnetostriction
부산대학교 공과대학
Stydies on the Hexagonal Ferrites(II) The Nagnetostricton pf Ferroxplana $Co_{1-x}Zn_xZ$($BA_3Co_{2(1-x)}Zn_{2x} Fe_{24}O_{41}$))
Both oriented and non-oriented ferroxplana $Co_{1-x}Zn_xZ(Ba_3Co_{2(1-x)}Zn_{2x} Fe_{24}O_{41})$ with x=0.00, 0.45 were prepared by conventional ceramic method. The magnetostrictions of thus prepared specimens were measured by use of the three terminal capacitor device at room temperature. The magnitude of measured values was approximately five times greater than that of ZnY ferroxplana. The easy-magnetization plane at room temperature of both CoZ and Co0.55 $Zn_{0.45}$Z was their basal plane. The magentostrictions in the basal plane and the other planes showed saturated values at magnetic field intensity of about 2Koe and 4Koe, respectively. The magnetostriction constants $K_1, ; K_2, ;K_3; and; K_4$ for CoZ were -2.4, -10.5, -5.9 and -45.2$times10^{-6}$ , while those for $Co_{0.55}Zn_{0.45}Z$ were +0.1, -1.2, -6.3 and -39.0$times$10^{-6}, , respectively.
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