Yog li ntawd, nyob rau hauv qhov tseeb ntau lawm, nws yog feem ntau ua ntej condense cov hlau nplaum hmoov rau ib feem ntawm amorphous xeev ntawm lub log ceev siab tshaj qhov zoo tshaj plaws linear ceev, thiab ces kho lub crystallization xeev mus rau ib tug nruab nrab grain loj ntawm 40nm los ntawm kev kho crystallization ntawm 630 degree, thiaj li ua tiav cov hlau nplaum ruaj khov thiab zoo ruaj khov. Lub tuam txhab Asmeskas Magquin Sib Nqus, uas yog tus tswj hwm lub isotropic sai quenched Nd-Fe-B kev ua lag luam, tau txais kev siv thev naus laus zis rau kev tsim khoom.
Anisotropic sai quenched tsawg lub ntiaj teb mus tas li hlau nplaum hmoov npaj los ntawm HDDR txheej txheem
HDDR txheej txheem yog ib txoj kev zoo heev los tsim anisotropic NdFeB magnetic hmoov. HDDR txheej txheem suav nrog Hydrogenation - Disproportionation - dehydrogenation - restructuring (Hydrogenation, Disproportionation, Desorption, Recombination, HDDR) plaub theem. Lub ntsiab lus ntawm HDDR txheej txheem yog tias lub ntiaj teb tsis tshua muaj intermetallic compounds nqus hydrogen thiab decompose, thiab tom qab ntawd hauv cov txheej txheem dehydrogenation tom ntej, cov khoom tsis sib xws sib xyaw ua ke rau hauv cov txheej txheem qub nrog cov nplej zoo, thiaj li ua tiav cov kev ua kom zoo ntawm cov khoom nplej. , thiab tsim cov qauv siv lead ua raws C axis ntawm lub ntsiab theem, thiaj li npaj cov hmoov sib nqus nrog cov khoom sib nqus zoo heev thiab sib nqus anisotropy.
Aichi Steel coj HDDR anisotropic magnetic hmoov rau kev ua lag luam los ntawm kev siv cov txheej txheem HDDR dynamic (d-HDDR) uas tswj qhov kub thiab txias thiab hydrogen siab nyob rau lub sijhawm, ua kom nws yooj yim dua kom ua tiav anisotropic kev ntxhib los mos ntawm cov hmoov sib nqus thiab ua tiav cov khoom lag luam ruaj khov.
