近年来 ,手机和电子计算机等电磁波电子机器迅速普及到普通家庭 ,使得越来越多的人成天被暴露于电磁波污染的环境之中。防止电磁波环境污染的高效电磁波吸收材料的开发 ,显得日益重要 ,已成为当前必须解决的极为重要的课题。为此 ,日本住友电器工业公司新近开发成功一种铁系高 In recent years, electromagnetic wave electronic devices such as mobile phones and electronic computers are rapidly popularized to ordinary families, making more and more people exposed to the environment of electromagnetic wave pollution all the time. The development of highly effective electromagnetic wave absorbing materials for preventing the environmental pollution of electromagnetic waves has become increasingly important and has become an extremely important issue to be solved at present. To this end, Japan Sumitomo Electric Industrial Co., Ltd. successfully developed a new type of high iron