Hlau Boride, FeB

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Hlau Boride, FeB

Iron boride, cov khoom siv tshiab superhard thiab superconducting, tau ua tiav ntse hauv chav kuaj los ntawm Gou Thiab lwm tus los ntawm University of Bayreut. Nws yog thawj tus thawj saib xyuas tsim qauv tsim los ntawm lub khoos phis tawm thiab tom qab ntawd los ntawm kev tshwm sim ntawm kev suav.


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Ferric boronAn alloy ntawm boron thiab ferricTus atomic nyhav rau boron yog 10.81, tus qauv hluav taws xob yog 1 $ 2p. Ntom ntawm crystallineabout 3.8 feem pua, nws muaj qhov sib txawv siv lead ua, nws cov eutectic kub s 1? tsev pheeb suab ntaub yog 2. 31g / cm3 (20 *) thiab qhov ceev ntawm amorphous boron yog 2. 30g / cm3 (20 "C). Melpoint yog 2079", kub taw tes yog 3660 "C Nyob rau hauv boron iron system, ntawm daim ntawv boronboron ob, cov sib txuas nruab nrab uas kuj tsis tshua ruaj khov rau qhov kub siab .Fe2b thiab Feb Thiab Feb muaj ob siv lead ua hom: siab kub thiab tsis kub .Txoj kev ntsuas kub ntawm kev lag luam boron hlau (10% -20% B) yog 1400-1550C, qhov ceev yog5 .8-6 .5g / cm3.

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>> Cov ntaub ntawv muaj feem xyuam

Cov txheej txheem rau FeB Cov phaus molecular ntawm 66.66 Iron boride, ib qho khoom tshiab superhard thiab superconducting cov khoom, tau ua tiav ntse hauv chav kuaj los ntawm Gou Thiab lwm tus los ntawm University of
Bayreut. Nws yog thawj tus tsim superconductor tsim los ntawm lub khoos phis tawm thiab tom qab ntawd ua los ntawm cov txiaj ntsig ntawm kev suav. , Suav lub npe hu ua hlau txawv npe txawv teb chaws Kev taw qhia los kho cov hlau boride, uas nyuam qhuav tshawb pom superhard thiab superconducting cov khoom, tau ua tiav ntse hauv chav kuaj los ntawm Gou Thiab lwm tus hauv Tsev Kawm Ntawv Qib Siab Bayreut. Nws yog thawj tus thawj kws tsim qauv tsim los ntawm lub khoos phis tawm thiab tom qab ntawd los ntawm cov txiaj ntsig ntawm cov kev suav.uperconductor editing Superconductor yog tus coj uas nthuav tawm xoom tsis kam ntawm qhov ntsuas kub. Xoom tsis kam thiab ua tiav diamagnetism yog ob qho tseem ceeb ntawm cov tsaj lij ntawm superconductors.
Qhov ntsuas kub ntawm kev ua haujlwm ntawm ib qho superconductor hloov pauv mus rau xoom yog hu ua superconducting qhov tseem ceeb kub, uas los ntawm cov ntaub ntawv superconducting tuaj yeem muab faib ua cov kub qis thiab kub superconductors. Qhov "siab kub" ntawm no yog qhov txheeb ze rau xoom, zoo hauv qab no khov. Cov kws tshawb fawb tau nrhiav ntev los tsa qhov kub tseem ceeb rau cov ntaub ntawv pov thawj cov khoom, thiab tam sim no qhov kub siab tshaj plaws rau cov ntsuas kub ntawm qhov ntsuas hluav taws xob yog qhov Mark Planck Institute 203K (-70 ° C).
Vim tias lawv xoom-ua cov khoom tiv thaiv, cov ntaub ntawv hu ua superconducting muaj ntau daim ntawv thov hauv kev tsim cov khoom sib nqus muaj zog, xws li MRI thiab nuclear sib nqus resonance duab.

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