Manganese Boride Hmoov, MnB2

Nyob zoo, tuaj sab laj nrog peb cov khoom!

Manganese Boride Hmoov, MnB2

Yuav siv los ua hom kev tiv thaiv kev tiv thaiv, tiv thaiv yaig thiab txhim kho thermal lub zog ntawm boron additives, siv los ua kev lag luam nuclear, kev lag luam tub rog kev lag luam superconducting cov ntaub ntawv thiab lwm yam ntaub ntawv tshiab


Khoom Nthuav dav

Cov FAQ

Cov khoom lag luam

>> Khoom Taw qhia

Cov mis mos molecular  MnB2
Tus Lej 12228-50-1
Nta  hmoov dub thiab txho
Yog ceev Tsis yog
Melting taw tes Tsis yog
Thov tuaj yeem siv ua hom kev tiv thaiv kev tiv thaiv, tiv thaiv yaig thiab txhim kho thethermal lub zog ntawm boron additives, siv los ua kev lag luam nuclear, kev lag luam tub rog ua haujlwm cov ntaub ntawv thiab lwm yam ntaub ntawv tshiab

>> COA

COA

>> Cov Ntawv Pov Thawj Loj

COA微信图片_20200926113910

>> Cov ntaub ntawv muaj feem xyuam

Lub npe lus Askiv: Manganese Boride
Subformula: MnB
Kev Muaj Peev Xwm: 65.75

Qhov kev tshawb pom yog tsim los ntawm pab pawg coj los ntawm Qiu Guangchun, tus xibfwb ntawm aoyama Gakuin University Lub Tsev Haujlwm Saib Xyuas Kev Tshawb Fawb thiab thev naus laus zis. Cov khoom siv superconducting muaj qhov hloov superconducting qhov kub thiab txias ntau npaum li Tc = 39K (-234 ℃) thaum cov kuj poob rau xoom. Qhov kev tshawb pom rov sau dua cov ntaub ntawv tsis yog tooj liab oxide superconducting cov khoom siv Tc. Yawg Akiko tau tshaj tawm xov xwm ntawm 26 Lub Ob Hlis 2001 txhawm rau tshaj tawm cov txiaj ntsig ntawm kev kawm. Ib lub xov tooj ntawm cov chaw tshawb fawb hauv Nyij Pooj thiab txawv teb chaws "kuj tau lees paub" qhov tseeb no los ntawm kev ntsuam xyuas ntxiv (International Center rau Superconducting Industrial Technology Institute ntawm Superconductivity thib Tshawb Nrhiav Thawj Coj, Suko Tajima li al.) Qhov siab dua qhov superconducting hloov pauv kub, qhov yooj yim dua yog siv. Lub Tc ntawm 39K tsis yog qhov tshwj xeeb tshaj yog.

Tam sim no, tib neeg tau pom lub siab kub superconductor (HgBa2Ca2Cu3O8) nrog Tc ntawm 134K (-139 ℃). Qhov pom ntawm tus neeg tshiab tsim kom muaj kev saib xyuas zoo vim tias nws muaj pes tsawg leeg. Sij hawm dhau los, kev ua haujlwm superconducting feem ntau tau ua tiav los ntawm tooj liab oxides. Vim tias tooj liab oxide yog nyob nrog cov chav kawm ceramic, nws yog "nyuaj rau kev ua tiav rau hauv ib hom kab, yog li nws tsis tau siv txog tam sim no" (Qiu Guang). Piv nrog rau qhov no, cov hlau compound manganese diboride muaj cov kev zoo hauv qab no.

(1) Manganese (Mg) thiab boron (B) yog pheej yig thiab yooj yim muaj. "Qhov no yog qhov zoo tshaj plaws ua ke rau kev tsim kho khoom lag luam" (Caij nplooj zeeg).
(2) Raws li kev ntsuas cua kub yog tsuas yog 700 ℃, yog li kev tsim khoom thiab kev ua lag luam tsawg.
(3) Lub zog superconducting ntawm cov alloy uas muaj Mg hlau ntsiab thiab manganese diboride yuav tsis muaj lub zog txawm tias nws tau ua rau hauv lub xeev tsis xoos.
(4) Raws li nws tsuas yog tsim muaj ob lub ntsiab lus, nws yooj yim los ua ke rau hauv cov yeeb yaj kiab nyias.

Cov khoom yog qhov ze tshaj rau SQUID (superconducting quantum cuam tshuam ntaus ntawv) yuav tsum tau.

>> Qhov tshwj xeeb



  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa rau peb