Bonded NdFeB, nke Nd2Fe14B mejupụtara, bụ ihe ndọta sịntetịt.Ihe ndọta NdFeB jikọtara ọnụ bụ ihe ndọta emere site na “ịkpụzi akpụzi” ma ọ bụ “ịkpụzi injection” site na ịgwakọta ntụ ntụ magnetik NdFeB na-emenyụ ngwa ngwa.Ihe ndọta jikọtara ọnụ nwere izi ezi akụkụ dị elu, enwere ike ịme ka ọ bụrụ ihe ndọta nwere ụdị dị mgbagwoju anya, ma nwee njirimara nke ịkpụzi otu oge yana ntuzi aka ọtụtụ ogwe.Bonded NdFeB nwere ike igwe dị elu, enwere ike ịmepụta ya n'otu oge yana ihe ndị ọzọ na-akwado ya.
Ihe ndọta jikọtara ọnụ pụtara na 1970s mgbe a na-ere ahịa SmCo.Ọnọdụ ahịa nke sintered na-adịgide adịgide magnet dị ezigbo mma, ma ọ na-esiri ike ịhazi ha kpọmkwem n'ụdị pụrụ iche, na ha na-enwekarị mgbawa, mmebi, nkwụsị ihu, nkwụsị nkuku na nsogbu ndị ọzọ n'oge nhazi.Na mgbakwunye, ha adịghị mfe ịgbakọta, ya mere ngwa ha nwere oke.Iji dozie nsogbu a, a na-egweri ihe ndọta na-adịgide adịgide, gwakọta ya na rọba, ma tinye ya n'ime oghere magnetik, nke bụ ma eleghị anya usoro mmepụta ihe kachasị ochie nke magnets.Ejila ihe ndọta NdFeB jikọtara ọnụ n'ọtụtụ ebe n'ihi ọnụ ala ha dị ala, izi ezi akụkụ dị elu, nnwere onwe nke ọdịdị dị mma, ike ọrụ dị mma, yana ike ndọda pụrụ iche, yana ọnụego uto kwa afọ nke 35%.Ebe ọ bụ na mmalite nke NdFeB magnetik ntụ ntụ na-adịgide adịgide, ihe ndọta na-agbanwe agbanwe enwetala mmepe ngwa ngwa n'ihi njirimara magnetik ya dị elu.