高密度磁记录材料——金属磁粉的穆斯堡尔效应研究

目前,制造高密度磁带的磁记录材料——金属磁粉,已被认为是较理想的材料。但是,这种磁粉有一些主要问题需要解决,才能制成实用的磁带,其中存在的主要问题是金属磁粉在空气中化学稳定性不好以及在磁浆中不易分散。所以研究金属磁粉化学稳定性不好的产生原因及解决办法是它能否实用的主要问题。我们利用穆斯堡尔效应并配合其它一些实验手段研究了金属磁粉的化学稳定性不好的原因及防护的方法。为在我国制成能实用的金属磁粉提供了科学数据。 关键词：

M?SSBAUER STUDIES OF THE METALLIC IRON POWDERS USED AS HIGH DENSITY MAGNETIC RECORDING MATERIAL

Recently the metallic magnetic powders have been recognized to be better materials for high density magnetic recording. Superior quality magnetic tapes have been made with these metallic powders. But there are some problems remined they are easily corrodible and are rather difficult to disperse in the lacquer. To study the causes of chemical instability of these materials and to prevent their corrosion are very important for their applications in practice. The causes of chemical instability of metallic powders are studied by M?ssbauer effect and other experimental methods. Their corrosion may be prevented basically. This study will provide some useful data for their practical applications.
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