Ese samariyumu ya cobalt irashobora gukoreshwa mumyaka irenga icumi - - igihe kirekire cyama camalt camalt mubushyuhe bwinshi

Iterambere rirerire rya magnesi ni impungenge za buri mukoresha.Guhagarara kwa samarium cobalt (SmCo) ni ngombwa cyane kubidukikije bikoreshwa.Mu 2000, Chen^[1]na Liu^[2]et al., shyira hamwe imiterere nuburyo bwubushyuhe bwo hejuru bwa SmCo, kandi wateje imbere magnet-sobarium-cobalt.Ubushyuhe ntarengwa bwo gukora (T._max) ya magneti ya SmCo yariyongereye kuva kuri 350 ° C igera kuri 550 ° C.Nyuma yibyo, Chen n'abandi.yazamuye okiside ya okiside ya SmCo ushyira nikel, aluminium nizindi myenda kuri magneti ya SmCo.

Mu mwaka wa 2014, Dr. Mao Shoudong, washinze “MagnetPower”, yize kuri gahunda ihamye ya SmCo ku bushyuhe bwinshi, kandi ibisubizo byatangajwe muri JAP^[3].Ibisubizo rusange nibi bikurikira:

1. IgiheSmConi mubushyuhe bwo hejuru (500 ° C, ikirere), biroroshye gukora igabanuka ryubutaka hejuru.Igice cyo gutesha agaciro kigizwe ahanini nubunini bwo hanze (Samarium irashira) hamwe nigice cyimbere (oxyde nyinshi).Imiterere shingiro ya magneti ya SmCo yarasenyutse rwose murwego rwo gutesha agaciro.Nkuko bigaragara ku gishushanyo cya 1 n’ishusho ya 2.

Igishushanyo.1.Micrografi nziza ya Sm₂Co₁₇magnesi isothermal ivurwa mukirere kuri 500 ° C mubihe bitandukanye.Ibice bitesha agaciro munsi yubuso aribwo (a) bubangikanye na (b) perpendicular kuri c-axis.

Igishushanyo.2.BSE micrograph hamwe na EDS ibice umurongo-gusikana kuri Sm₂Co₁₇magnesi isothermal ivurwa mukirere kuri 500 ° C kuri 192 h.

2. Ihinduka nyamukuru ryurwego rwo gutesha agaciro bigira ingaruka zikomeye kumiterere ya magnetiki ya SmCo, nkuko bigaragara ku gishushanyo cya 3. Ibice byo gutesha agaciro byari bigizwe ahanini na Co (Fe) igisubizo gikomeye, CoFe2O4, Sm2O3, na ZrOx mubice byimbere na Fe3O4, CoFe2O4, na CuO mumunzani yo hanze.Co (Fe), Co.Imyitwarire yo gutesha agaciro igomba kugenzurwa.

Igishushanyo 3. Imirongo ya rukuruzi ya Sm₂Co₁₇magnesi isothermal ivurwa mukirere kuri 500 ° C mubihe bitandukanye.Ubushyuhe bwikigereranyo bwa magnetisiyasi ni 298 K. Umwanya wo hanze H uhuye na c-axis ihuza Sm₂Co₁₇rukuruzi.

3. Niba ibishishwa bifite imbaraga nyinshi zo kurwanya okiside byashyizwe kuri SmCo kugirango bisimbuze umwimerere wa electroplating coatings, inzira yo kwangirika kwa SmCo irashobora kubuzwa cyane kandi umutekano wa SmCo urashobora kunozwa nkuko bigaragara ku gishushanyo cya 4. Ikoreshwa ryaCYANGWA gutwikirakubuza cyane kwiyongera kwibiro bya SmCo no gutakaza ibintu bya magneti.

Igishushanyo.4 imiterere yo kurwanya okiside cyangwa gutwikira kuri Sm₂Co₁₇rukuruzi.

Kuva icyo gihe "MagnetPower" yakoze ubushakashatsi bwigihe kirekire (~ 4000hours) ku bushyuhe bwo hejuru, bushobora gutanga umurongo uhamye wa magneti ya SmCo kugirango uzakoreshwe mu gihe cy'ubushyuhe bwinshi.

Mu 2021, hashingiwe ku bushyuhe ntarengwa bwo gukora busabwa, “MagnetPower” yashyizeho urutonde rw'amanota kuva kuri 350 ° C kugeza kuri 550 ° C （Urukurikirane）.Aya manota arashobora gutanga amahitamo ahagije kubushyuhe bwo hejuru bwa SmCo, kandi ibintu bya magnetique nibyiza cyane.Nkuko bigaragara ku gishushanyo cya 5. Nyamuneka reba urupapuro rwurubuga kugirango ubone ibisobanuro:https://www.magnetpower-tech.com/t-series-sm2co17-smco-magnet-supplier-product/

Igicapo.5 Ubushyuhe bwo hejuru bwa SmCo rukuruzi (T ikurikirana) ya “MagnetPower”

UMWANZURO

1. Nka isi ihagaze neza cyane ya magneti ahoraho, SmCo irashobora gukoreshwa mubushyuhe bwinshi (≥350 ° C) mugihe gito.Ubushyuhe bwo hejuru SmCo (T ikurikirana) burashobora gukoreshwa kuri 550 ° C hatabayeho demagnetisation idasubirwaho.

2. Ariko, niba magnet ya SmCo yarakoreshejwe mubushyuhe bwo hejuru (≥350 ° C) mugihe kirekire, ubuso bukunda kubyara igabanuka.Gukoresha anti-okiside birashobora gutuma SmCo ihagarara neza mubushyuhe bwinshi.

Reba

[1] CHChen, IEEE Ihererekanyabubasha kuri Magnetique, 36, 3291-3293, (2000);

[2] JF Liu, Ikinyamakuru cya fiziki ikoreshwa, 85, 2800-2804, (1999);

[3] Shoudong Mao, Ikinyamakuru cya fiziki ikoreshwa, 115, 043912,1-6 (2014)