发明授权
US5030371A Process for preparing acicular ferromagnetic material consisting essentially of iron-containing chromium dioxide 失效
制备基本上由含铁二氧化铬组成的针状铁磁材料的方法

Process for preparing acicular ferromagnetic material consisting
essentially of iron-containing chromium dioxide
摘要:
An acicular, ferromagnetic material which has a high coercive force and essentially consists of iron-containing chromium dioxide is prepared by thermal decomposition of hydrated chromium(III) chromate under superatmospheric pressure.
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