Ọdịdị okirikiri ahụ na-enye nnukwu ebe dị elu na saịtị na-arụ ọrụ, nke na-eme ka mmeghachi omume catalytic pụta.
The urughuru size nkesa nso nke Spherical nickel ntụ ntụ bụ warara, na elu na-evenly kesara na a otu akụkụ agịga-dị ka Ọdịdị nke banyere 200nm n'ogologo. N'otu aka ahụ, ọ dị mma iji belata agglomeration nke ọma n'etiti ntụ ntụ magnetik, ma nwee ike imeziwanye eletriki na ọkụ ọkụ nke ihe dị n'okpuru otu usoro ntinye ihe; N'aka nke ọzọ, usoro anisotropic ya na-enyekwa aka imeziwanye ihe ndọta nke ihe ahụ na arụmọrụ ya nke electromagnetic.