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七十年代初,由于科姆把美国军方研制的磁性不锈钢毛作为磁过滤器的聚磁介质后,使过滤器中磁场梯度由10增加到10~3,为高梯度磁过滤器使用开辟了广泛的前景.但制备具有特殊形状的磁性钢毛,工艺复杂,成本高,推广使用带来了困难.为此作者研制了一种磁性耐蚀性优良的聚磁介质——FeCr_(10)P_(13)C_7非晶钢毛.试验表明这种非晶聚磁介质在12.3%浓度的盐酸和1M浓度的氢氧化钠或磁化后的自来水中不腐蚀,与国外
In the early seventies, Comme opened the magnetic gradient of magnetic filters from 10 to 10 ~ 3 because of the magnetic stainless steel wool developed by the U.S. military as a magnetic filter. However, the preparation of magnetic steel wool with special shape has complicated process, high cost and difficult to popularize.Therefore, the author has developed a new magnetic material, FeCr_ (10) P_ (13) C_7 amorphous steel wool.Experiments have shown that this amorphous polymagnetic medium does not corrode in 12.3% hydrochloric acid and 1M sodium hydroxide or magnetized tap water, and foreign