In　recent　years,　there　is　an　increasing　demand　to　recycle　the　waste　NdFeB　permanent　magnets　fromboth　mass　production　and　waste　apparatus　such　as　motors　due　to　the　rare　earth　resource　limit　and　environmental　protection.　Up　to　now,　many　efforts　have　been　devoted　to　the　recycling　works.　Takeda　et　al.　extracted　Nd　metal　directly　from　NdFeB　magnet　scraps　[1].　Itoh　et　al.　recycled　rare　earth　containing　sintered　magnets　to　make　isotropic　bonded　magnets　by　melt　spinning　[2].　In　our　previous　study,　NdHx　nanoparticles　were　used　to　prepare　regenerated　sintered　NdFeB　magnets,　and　the　coercivity　of　the　magnet　increased　by　40%　via　the　NdHx　nanoparticles　doping　[3].　©　2015　IEEE.