Increasing iron content has been witnessed an essential method to improve the remanence of 2:17-type Sm-Co-Fe-Cu-Zr magn......

At the present time in china, the binder used in tungsten carbide composite button is mainly cobalt, which is very expen......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

研究了稀土变质处理后HAL61-4-3-1和HAL64-5-4-2铸态金相组织的变化。结果表明：加入一定量的混合稀土可以使HAL61-4—3-1和HAL64-5-......

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