(EN) The purpose of the present invention is to provide: a sintered magnet which contains Sm-Fe-N crystal grains and has high coercivity; and a magnetic powder which is capable of forming a sintered magnetwithout lowering the coercivity even if heat is generated in association with the sintering. A sintered magnet which comprises a crystal phase that is composed of a plurality of Sm-Fe-N crystal grains and non-magnetic metal phases that are present between adjacent Sm-Fe-N crystal grains, and wherein the ratio of the Fe peak intensity IFe to the SmFeN peak intensity ISmFeN as determined by an X-ray diffraction method is 0.2 or less. A magnetic powder which contains Sm-Fe-N crystal grains and non-magnetic metal layers that cover the surfaces of the Sm-Fe-N crystal grains.
(ZH) 本发明的目的在于提供一种含有Sm‑Fe‑N系晶粒且具有高矫顽力的烧结磁体以及即便在随着烧结所产生的热的作用下也能够不使矫顽力降低地形成烧结磁体的磁体粉末。上述烧结磁体包含由多个Sm‑Fe‑N系晶粒构成的结晶相、和存在于邻接的Sm‑Fe‑N系晶粒之间的非磁性金属相,并且,由X射线衍射法测定的、Fe峰的强度IFe与SmFeN峰的强度ISmFeN之比为0.2以下。上述磁体粉末包含Sm‑Fe‑N系晶粒和被覆该Sm‑Fe‑N系晶粒的表面的非磁性金属层。