Ese samariyumu ya cobalt ikoreshwa mumyaka irenga icumi - - igihe kirekire cya camalt camalt yubushyuhe bwinshi

Iterambere rirerire rya magnesi ni impungenge za buri mukoresha. Guhagarara kwa samarium cobalt (SmCo) ni ngombwa cyane kubidukikije bikabije. 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.

. CoFe2O4, na CuO mumunzani yo hanze. Co (Fe), Co. Imyitwarire yo gutesha agaciro igomba kugenzurwa.

Igishushanyo cya 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 impuzu zirwanya okiside nyinshi zashyizwe kuri SmCo kugirango zisimbuze umwimerere wa electroplating coatings, inzira yo kwangirika kwa SmCo irashobora guhagarikwa cyane kandi umutekano wa SmCo urashobora kunozwa nkuko bigaragara ku gishushanyo cya 4. Gushyira mu bikorwaCYANGWA 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.

Muri 2021, hashingiwe ku bushyuhe ntarengwa bwo gukora busabwa, “MagnetPower” yateguye urukurikirane 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 ku rubuga ibisobanuro birambuye: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 ihamye cyane ya rukuruzi ihoraho, 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) umwanya muremure, 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 Porogaramu ikoreshwa, 85, 2800-2804, (1999);

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