锌掺杂钴铁氧体：硬磁→软磁李诗瑢;任勇;王改花;吕世雅;代波命开头的成语【摘 要】Co1-χ Znχ Fe2 O4 doped with different amount of zinc were prepared by the chemical co-precipitation method, and the influences of doped zinc on structure and m
实验讲义用振动样品磁强计测量 铁氧体永磁磁性能吉林大学物理实验中心第一节 预备知识一 物质磁性磁性是在自然界所有物质中广泛存在的一种物理性质。任何物质放在磁场H 中，都会或多或少地被磁化。通常用磁极化强度J 或磁化强度M （J 、M 为单位体积内的磁矩，M J 0µ=）表示磁化状态，即磁化的方向和磁化程度的大小。H M χ=，χ为磁化率。磁感应强度H J B 0µ+=或)(0H M B +=µ。依
1、Stainless steels contain from 10 to 30% chromium. Varying amounts of nickel, molybdenum, copper,sulfur, titanium, niobium, etc. may be added to obtain desired mechanical properties and rvicelife.
