Dab tsi yog qhov tsis tshua muaj hlau ntawm cov hlau tsis tshua muaj?

● Hafnium(HF):

○ Cov ntsiab lus hauv ntiaj teb crust yog hais txog 0. 0005%, thiab nws yog cov hlau tsis tshua muaj.

Tsis tas siv nyob rau hauv kev lag luam nuclear raws li tswj cov pas nrig thiab roj cladding rau nuclear reactors.

○ Cov tsheb thoob ntiaj teb feem ntau muab faib rau Australia, Brazil, Is Nrias teb thiab lwm qhov chaw, feem ntau yog nyob rau hauv daim ntawv ntawm zirconium ore. Vim yog cov txheej txheem nyuaj, tus nqi ntawm Hafnium yog qhov tseem ceeb, nyob ib ncig ntawm peb kilogram (ib ncig ntawm tus nqi yuav sib txawv vim kev ua lag luam hloov pauv)

● Rhenium (RE):
○ Ib qho ntawm cov neeg tsis tshua muaj nyob hauv lub ntiaj teb crust, nrog cov ntsiab lus nruab nrab ntawm tsuas yog 7 × 10 ⁻⁸%.
○ Mas siv rau lub dav hlau siab thiab cov foob pob hluav taws, tshwj xeeb tshaj yog rau cov khoom tseem ceeb xws li cov dav hlau cav tuaj.
Hauv ntiaj teb muaj qee qhov kev sib zog sib luag heev, tsuas yog tsim hauv Chile.
Tus nqi siab, txog 10000-12000 Yuan \/ kg.
SCANDIUM (SC):
Belongs rau lub ntiaj teb tsawg dua ntawm cov hlau, nrog cov ntsiab lus ntawm 6 × 10 ⁻⁴% hauv kev pam tuag.
○ Siv rau kev tsim khoom siab-ua tau zoo ua tau zoo aluminium alloys, dav siv nyob rau hauv Aerospace kev lag luam.
○ Txhim kho lub zog, kev ua tau zoo, thiab cua sov ua kom tsis taus ntawm aluminium alloys, thiab txhim kho cov kev ua tau zoo ntawm cov dav hlau thiab foob pob.
● Indium (hauv):
○ Cov tsheb thoob ntiaj teb yog kwv yees li 50000 tons, faib tawm hauv qhov tawg.
○ Cov ntaub ntawv tseem ceeb ntawm cov semiconduct kev lag luam, siv rau cov zaj duab xis ua yeeb yaj kiab nyias thiab Optoelectronic khoom siv.
○ Siv dav hauv Aerospace, kev lag luam hluav taws xob, kev kho mob thiab kev tiv thaiv teb.
○ tshwj xeeb tshaj yog tsis tseem ceeb hauv LCD cov lus qhia thiab cov hlwb solar.
Gallal (GA):
○ Lub ntiaj teb no tag nrho cov peev nyiaj yog kwv yees li 230000 tons, uas tsis muaj ib qho ntxhia tso nyiaj ntawm cov nqi mining.
○ Cov ntaub ntawv nyoos tseem ceeb rau cov semiconductors thiab lub hnub ci hlwb.
○ Cov khoom hauv hluav taws xob zoo ua rau nws dav siv hauv cov khoom siv hluav taws xob siab thiab lub zog txuas ntxiv.
● (FR):
○ Belongs rau cov hlau alkali, nrog cov ntsiab lus tsawg kawg hauv lub ntiaj teb crust, thiab yog hlau hluav taws xob.
Tsis tas siv rau kev tshawb fawb thiab kev siv cov ntawv thov tshwj xeeb.
○ Nws muaj nyob rau hauv qhov tsawg me me hauv xwm, feem ntau yog nyob rau hauv daim ntawv ntawm cov khoom lag luam ntawm uranium thiab thorium. Vim nws yog nws lub xov tooj cua, nws cov ntaub ntawv siv tau txwv.
● (cf):
Reserve qhov xwm txheej: (CF) yog ib qho synthesialized synthesized xov tooj cua. Xyoo 1950, University of California, Berkeley ua thawj lub suab hluav taws xob ua ntej, feem ntau yog cov khoom lag luam nrawm, tsuas yog ob peb gram tsim thoob plaws txhua xyoo.
○ Qhov xwm txheej mining: kev npaj ntawm cov tshuab hluav taws xob yuav tsum muaj cov nqi tshwj xeeb xws li muaj cov nqi ntau tab sis kuj ua rau qee qhov kev pheej hmoo siab.
○ Daim ntawv thov: California muaj cov pa neutron muaj zog thiab tuaj yeem siv rau kev kho hluav taws xob kev mob qog noj ntshav; Hauv kev tshawb nrhiav roj, nws yog siv rau cov roj txiav kom nkag siab tus qauv tsim qauv thiab cov roj cov ntsiab lus los ntawm kev sib cuam tshuam ntawm neutrons thiab tsim cov ntaub ntawv.

Qhov tseeb, nws yog qhov nyuaj rau kev txiav txim siab txog kev sib tw ntawm cov hlau tsis tshua muaj txiaj ntsig los ntawm ntau yam xws li kev tshwj tseg, tsuas yog cov peev txheej, thiab kev thov kev lag luam. Txawm li cas los xij, cov khoom sib hais saum toj saud tau hais tias feem ntau tau txiav txim siab tsis tshua muaj tsawg.