CAJ | 학술논문

ThMn12型结构的富铁稀土-过渡元素金属间化合物及其它们的氮化物是一种新型的永磁材料.现采用还原扩散法合成了6种NdxDy(1-x)(Fe,Mo,V,Co)12样品,并在500℃氮化成相应的氮化物.粉末X-射线衍射结果表明,这类金属间化合物属四方晶系,氮化物保持原来的晶型,但晶胞体积稍有增加.衍射结果表明,用还原扩散法合成的这类化合物不含有α-Fe.
ThMn12형결구적부철희토-과도원소금속간화합물급기타문적담화물시일충신형적영자재료.현채용환원확산법합성료6충NdxDy(1-x)(Fe,Mo,V,Co)12양품,병재500℃담화성상응적담화물.분말X-사선연사결과표명,저류금속간화합물속사방정계,담화물보지원래적정형,단정포체적초유증가.연사결과표명,용환원확산법합성적저류화합물불함유α-Fe.
Fe-rich rare earth-transition element intermetallics withThMn12-type structure and their nitrides are a kind of new permanent magnetic material. Six kinds of NdxDy(1-x)(Fe,Mo,V,Co)12 were synthesized by reduce-diffuse method. These compounds can absorb moderate quantities of nitrogen at 500℃, giving the corresponding nitrides. The power X-ray diffraction analyses show that these intermetallic compounds belong to tetragonal structure and the corresponding nitride retained the same structure, but the unit cell volume of nitride is slightly increased. The diffraction analyses also show that there is no α-Fe in the sample.