Manganese Boride ufa, MnB2

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Manganese Boride ufa, MnB2

Itha kugwiritsidwa ntchito ngati mtundu wa anti-makutidwe ndi okosijeni, anti-kukokoloka komanso kusintha mphamvu yamatenthedwe azowonjezera za boron, omwe amagwiritsidwa ntchito ngati mafakitale a zida za nyukiliya, zida zamagulu ankhondo zopangira zida ndi zinthu zina zatsopano


Mankhwala Mwatsatanetsatane

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>> Mankhwala Chiyambi

Njira yamagulu  MnB2
Nambala ya CAS 12228-50-1
Makhalidwe  wakuda ndi imvi ufa
Kuchulukitsitsa Ayi
Kusungunuka Ayi
Kugwiritsa ntchito itha kugwiritsidwa ntchito ngati mtundu wa anti-makutidwe ndi okosijeni, odana ndi kukokoloka kwa nthaka komanso kusintha mphamvu ya kutentha kwa zowonjezera za boron, zogwiritsidwa ntchito ngati mafakitale a zida za nyukiliya, mafakitale ankhondo opangira zinthu ndi zinthu zina zatsopano

>> NKHANI

COA

>> Zikalata Zazikulu

COA微信图片_20200926113910

>> Zokhudzana deta

Chingerezi dzina: Manganese Boride
Ndondomeko: MnB
Mphamvu: 65.75

Kupeza kumeneku kunapangidwa ndi gulu lotsogozedwa ndi Qiu Guangchun, pulofesa ku dipatimenti ya Science and Technology ya aoyama Gakuin University. Zinthu zopitilira muyeso zimakhala ndizotentha kwambiri kuposa Tc = 39K (-234 ℃) pomwe kukana kumatsikira mpaka zero. Kupezaku kumalembanso zolembedwa zosakhala zamkuwa zosakanikirana ndi Tc. A Akiko adachita msonkhano ndi atolankhani pa 26 February 2001 kuti alengeze zotsatira za kafukufukuyu. Ofufuza angapo ku Japan ndi kumayiko ena "adatsimikiziranso" izi kudzera m'mayeso owonjezera (International Center for Superconducting Industrial Technology Institute of Superconductivity wachiwiri Woyang'anira Kafukufuku, Suko Tajima et al.). Kutentha kwapamwamba kwambiri kosamutsa kutentha, ndikosavuta kugwiritsa ntchito. Tc ya 39K siyokwera kwenikweni.

Pakadali pano, anthu apeza superconductor wotentha kwambiri (HgBa2Ca2Cu3O8) wokhala ndi Tc ya 134K (-139 ℃). Kupezeka kwa superconductor watsopano kwachititsa chidwi chifukwa cha kapangidwe kake. M'mbuyomu, kutentha kwakukulu kumachitika makamaka ndi ma oxide amkuwa. Chifukwa oxide wamkuwa ndi wa kalasi ya ceramic, "ndizovuta kuti zikonzedwe moyenera, chifukwa chake sizinagwiritsidwe ntchito mpaka pano" (Qiu Guang). Poyerekeza ndi izi, chitsulo chophatikizira manganese diboride chili ndi maubwino otsatirawa.

(1) Manganese (Mg) ndi boron (B) ndiotsika mtengo ndipo amapezeka mosavuta. "Uwu ndiye mgwirizano wabwino kwambiri wazachuma" (Autumn).
(2) Monga kutentha kaphatikizidwe kamakhala 700 ℃ zokha, chifukwa chake kupanga ndi kukonza mtengo kumakhala kotsika.
(3) Katundu wambiri wa aloyi omwe ali ndi Mg chitsulo ndi manganese diboride sangasokonezeke ngakhale atasinthidwa kukhala alloy state.
(4) Popeza ili ndi zinthu ziwiri zokha, ndizosavuta kupanga mafilimu ang'onoang'ono.

Zinthuzo ndizoyandikira kwambiri ku SQUID (superconducting quantum interference device).

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