Kev taw qhia luv luv
Khoom npe: Samarium
Formula: Sm
CAS Nr .: 7440-19-9
Molecular Luj: 150.36
Qhov ceev: 7.353 g / cm3
Melting point: 1072°C
Puab: 10 x 10 x 10 mm cube
Samarium yog lub ntiaj teb tsis tshua muaj cov khoom uas yog cov xim dawb-dawb, mos, thiab cov hlau tsis muaj zog. Nws muaj qhov melting point ntawm 1074 ° C (1976 ° F) thiab qhov kub ntawm 1794 ° C (3263 ° F). Samarium paub txog nws lub peev xwm nqus cov neutrons thiab siv rau hauv kev tsim cov hlau nplaum samarium-cobalt, uas yog siv ntau yam kev siv, nrog rau hauv cov motors thiab generators.
Samarium hlau feem ntau yog tsim los ntawm ntau txoj kev, suav nrog electrolysis thiab thermal txo. Nws feem ntau yog muag nyob rau hauv daim ntawv ntawm ingots, rods, nplooj ntawv, los yog hmoov, thiab kuj yuav ua tau rau hauv lwm yam ntaub ntawv los ntawm cov txheej txheem xws li casting los yog forging.
Samarium hlau muaj ntau yam kev siv tau, suav nrog hauv kev tsim cov catalysts, alloys, thiab electronics, nrog rau kev tsim cov hlau nplaum thiab lwm yam khoom tshwj xeeb. Nws kuj tseem siv rau hauv kev tsim cov roj nuclear thiab hauv kev tsim cov tsom iav tshwj xeeb thiab ceramics.
Khoom siv: | Samarium |
Purity: | 99.9% |
Atomic naj npawb: | 62 |
Qhov ntom | 6.9 g.cm-3 ntawm 20 ° C |
Melting point | 1072 ° C |
Bolling point | 1790 ° C |
Dimension | 1 nti, 10mm, 25.4mm, 50mm, los yog Customized |
Daim ntawv thov | Khoom plig, kev tshawb fawb, kev nthuav qhia, sau, kho kom zoo nkauj, kev kawm, kev tshawb fawb |
- Cov hlau nplaum ruaj khov: Ib qho tseem ceeb tshaj plaws ntawm kev siv samarium yog kev tsim cov hlau nplaum samarium cobalt (SmCo). Cov hlau nplaum ruaj khov no paub txog lawv lub zog sib nqus siab thiab zoo thermal stability, ua rau lawv zoo tagnrho rau kev siv hauv kev ua haujlwm siab xws li motors, generators, thiab sensors. SmCo hlau nplaum yog qhov muaj txiaj ntsig tshwj xeeb hauv kev lag luam aerospace thiab kev tiv thaiv, qhov twg kev ntseeg siab thiab kev ua tau zoo yog qhov tseem ceeb.
- Nuclear Reactors: Samarium yog siv los ua neutron absorber hauv nuclear reactors. Nws muaj peev xwm ntes cov neutrons, yog li pab tswj cov txheej txheem fission thiab tswj kev ruaj ntseg ntawm lub reactor. Samarium feem ntau muab tso rau hauv kev tswj cov pas nrig thiab lwm yam khoom, uas ua rau muaj kev nyab xeeb thiab ua haujlwm zoo ntawm cov chaw tsim hluav taws xob nuclear.
- Phosphor thiab Lighting: Samarium compounds yog siv nyob rau hauv phosphors rau kev siv teeb pom kev zoo, tshwj xeeb tshaj yog cathode ray tubes (CRTs) thiab fluorescent teeb. Samarium-doped cov ntaub ntawv tuaj yeem tso tawm lub teeb ntawm cov wavelengths tshwj xeeb, yog li txhim kho cov xim zoo thiab kev ua haujlwm ntawm lub teeb pom kev zoo. Daim ntawv thov no yog ib qho tseem ceeb rau kev txhim kho cov khoom siv thev naus laus zis thiab kev siv hluav taws xob siv hluav taws xob teeb pom kev zoo.
- Alloying tus neeg sawv cev: Pure samarium yog siv los ua tus neeg sawv cev ntawm ntau yam hlau alloys, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov hlau nplaum tsis tshua muaj hauv ntiaj teb thiab lwm cov ntaub ntawv ua tau zoo. Qhov sib ntxiv ntawm samarium txhim kho cov khoom siv kho tshuab thiab kev tiv thaiv corrosion ntawm cov alloys, ua rau lawv haum rau siv hauv electronics, automotive thiab aerospace industries.