Magnetic Properties of Ga Doped Nd-Fe-B Sintered Magnets
来源期刊：Journal of Rare Earths1991年第1期
论文作者：刘金芳 罗河烈 潘树明 聂向富 侯登录
文章页码：47 - 50
摘 要：<正> The magnetic properties of Nd16Fe77B7 and Nd16Fe（61-x）Co16GaxB7（x=0,1,2,4,7）have been measured.Itis found that the remanent magnetization（Br）,maximum energy product（BH）maxand the Curie temperature（Tc）decrease with the increase of Ga content.The coercive force（He）increases with the increase of Ga contentwhen x is less than 2,but decreases when x>2.At x=2,the coercive force reaches its maximum value.It is alsofound in all the samples investigated that there is a linear relationship between Hc1/2and T2/3,which can not beexplained by Gaunt’s wall barrier model.The temperature dependence of the calculated values of Hv and（4bf）has been discussed.
刘金芳，罗河烈，潘树明，聂向富，侯登录
摘 要：<正> The magnetic properties of Nd16Fe77B7 and Nd16Fe（61-x）Co16GaxB7（x=0,1,2,4,7）have been measured.Itis found that the remanent magnetization（Br）,maximum energy product（BH）maxand the Curie temperature（Tc）decrease with the increase of Ga content.The coercive force（He）increases with the increase of Ga contentwhen x is less than 2,but decreases when x>2.At x=2,the coercive force reaches its maximum value.It is alsofound in all the samples investigated that there is a linear relationship between Hc1/2and T2/3,which can not beexplained by Gaunt’s wall barrier model.The temperature dependence of the calculated values of Hv and（4bf）has been discussed.
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