Vim li cas Nitinol Tsis yog -magnetic?

Nyob rau hauv chav tsev kub, lub dominant theem ntawmNitinolyog austenite. Nws cov qauv siv lead ua thiab kev teeb tsa hluav taws xob ua rau nws tsis yog -ferromagnetic, txhais tau tias nws tsis muaj qhov sib nqus attraction. Txawm hais tias npib tsib xee-titanium alloy yog tsim los ntawm npib tsib xee (Ni) thiab titanium (Ti)- thiab cov nickel ntshiab yog inherently ferromagnetic thaum titanium tsis yog -sib nqus- ob lub ntsiab ua ib qho intermetallic compound es tsis yog ib qho yooj yim sib tov ntawm cov khoom; Yog li ntawd, electron spines thiab magnetic moments yog rearranged.

Nitinol feem ntau yog tsim los ntawm nickel (Ni) thiab titanium (Ti):

1) Ntshiab nickel yog ferromagnetic, whereas titanium tsis yog -magnetic.

2) Ob qho tib si tsim ib qho kev sib txuas sib txuas es tsis yog qhov sib xyaw yooj yim, uas ua rau muaj kev hloov pauv ntawm electron spinning thiab lub sijhawm sib nqus.

Nickel-titanium alloys muaj nyob rau hauv ob theem siv lead ua nrog cov khoom sib nqus sib txawv:

1.) Austenite Phase (Sable ntawm siab / chav tsev kub):

Atoms tau teeb tsa hauv lub cev kom muaj zog -centered cubic (BCC) qauv; atomic magnetic moments tshem tawm ib leeg tawm, ua rau tsis muaj net macroscopic magnetic moments thiab tsis yog - tus cwj pwm sib nqus. Qhov no yog lub xeev thaum siv txhua hnub.

2.) Martensite Phase (Tom qab qis-kub theem hloov pauv):

Lub martensitic theem transformation tshwm sim ntawm qhov kub thiab txias, ua rau lattice distortion; cov khoom pov thawj tsuas yog tsis muaj zog paramagnetism. Nws tseem tsis muaj ferromagnetic los yog cov khoom sib nqus mus tas li thiab tsis nyiam cov hlau nplaum.

Nyob rau hauv cov hlau thiab hlau, 3d electrons muaj unpaired spin thiab sib nqus lub sij hawm nyob rau hauv tib txoj kev, ua rau muaj zog ferromagnetism.
Nyob rau hauv sib piv, ib tug ruaj khov alloy bonds ntawm Nitinol yog tsim, electron spin khub, ua rau tag nrho cov hlau nplaum lub sij hawm poob mus rau xoom.

Yog li, cov khoom no tsis nyiam cov hlau nplaum los yog nws tsis tsim ib qho chaw sib nqus nws tus kheej.

Daim ntawv thov:

- ✅ Kev kho mob cog: Vim tias nickel-titanium alloy yog MRI- nyab xeeb thiab tsis muaj kev cuam tshuam sib nqus, kev lag luam kho mob feem ntau siv Nitinol zoo-nco alloy hlau los tsim cov hlab plawv thiab vascular stents, guidewires rau qhov quav thiab endoscopic cov txheej txheem, thiab orthodontic hlau.

- ✅ Antimagnetic Cheebtsam thiab Automotive Kev Lag Luam: Nrog rau kev txhim kho thev naus laus zis, Nitinol alloys kuj tau siv dav hauv cov khoom siv rau cov xov tooj ntawm tes thiab tsheb, nrog rau hauv tsheb kav hlau txais xov.

- ✅ Cov Khoom Siv Nyiaj Txiag: Vim nws zoo elasticity thiab yooj, superelastic Nitinol yog dav siv nyob rau hauv cov hniav nyiaj hniav kub kev lag luam -xws li rau bracelets, tsej, rings, necklaces, thiab hniav nyiaj hniav kub springs. Yog tias koj txaus siab rau Nitinol cov hniav nyiaj hniav kub, thov koj xav tiv tauj peb ntawm amybai2010@zwmet.com lossis ntawm WhatsApp ntawm 0086-18161909782; peb muaj ib pab pawg kws tshaj lij Nitinol cov hniav nyiaj hniav kub ntawm koj qhov kev pabcuam thiab tseem muaj kev pabcuam ODM.

Hauv cov ntsiab lus, Nitinol inherently zam qhov seem hlau nplaum feem ntau tshwm sim los ntawm kev ua haujlwm txias. Nws tau ntawv pov thawj muaj kev nyab xeeb rau kev siv nrog MRI (Magnetic Resonance Imaging) cov cuab yeej, vim nws ua rau tsis muaj kev cuam tshuam ntawm magnetic teb. Dav siv nyob rau hauv siab -kawg daim ntaub ntawv xws li kev kho mob implants, precision instruments, thiab anti-magnetic hniav nyiaj hniav kub, nws yog ib tug nyiam cov khoom rau tsawg- sib nqus los yog tsis yog -magnetic kev khiav hauj lwm ib puag ncig.