1铁氧体永磁材料的现状永磁铁氧体材料（简称铁氧体，下同）仅是磁性材料产品的一大类。由于其原料丰富、造价低、工艺简便成熟，因而发展很快，应用面逐步扩大。据资料报导1990～1994年世界铁氧体产量由20．7万吨上升到27．5万吨，年增长率为7．4％。而我国同期的年增长率为45 1 The status of ferrite magnets Permanent ferrite materials (referred to as ferrite, the same below) is only a major category of magnetic materials. Due to its rich raw materials, low cost, simple and mature technology, which developed rapidly, the application gradually expanded. According to statistics, the production of ferrite in the world rose from 207,000 tons to 275,000 tons from 1990 to 1994, representing an annual growth rate of 7.4%. Our country’s annual growth rate of 45 over the same period