Niobium Kev Lag Luam Keeb Kwm

Nws yog thaum pib ntawm lub xyoo pua 20th uas niobium tau siv thawj zaug hauv kev tsim cov roj teeb. Daim ntawv thov no tau hloov sai sai los ntawm tungsten, uas muaj cov ntsiab lus melting ntau dua thiab zoo dua rau kev tsim cov roj teeb incandescent. Qhov kev tshawb pom ntawm niobium lub peev xwm los ua kom muaj zog ntawm cov hlau hauv xyoo 1920 tau muab kev txhawb siab rau kev siv niobium hauv kev lag luam hlau thiab hlau, uas tseem yog thaj chaw thov tseem ceeb. Tam sim no, steel teb tseem yog daim ntawv thov tseem ceeb ntawm niobium. 1940s, tantalum-niobium high-temperature alloy daim ntaub ntawv tau raug tsim. Xyoo 1950, qhov tshwm sim ntawm kev rho tawm kev sib cais ntawm tantalum thiab niobium thev naus laus zis rau kev txhim kho kev lag luam niobium nteg lub hauv paus rau kev txhim kho kev lag luam niobium. Xyoo 1961, US physicist Eugene Kunzler thiab cov npoj yaig hauv Tswb Laboratory pom tias niobium-tin alloys tuaj yeem nyob rau hauv cov ntaub ntawv ntawm cov hluav taws xob muaj zog thiab muaj qhov muaj zog sib nqus teb Qhov kev tshawb pom no txhawb kev siv niobium hauv kev siv hluav taws xob thiab electromagnetism.
Ntiaj teb niobium noj tau mus txog 1,{1}} mus rau 1,200 tons hauv 1970s lig thiab nce mus rau 1,600 txog 1,800 tons los ntawm lig 1980s. Raws li cov ntaub ntawv tso tawm los ntawm US Geological Survey nyob rau hauv 2014, nyob rau hauv 2013, lub ntiaj teb no niobium ntau lawm yog hais txog 51, 000 tons, thiab ntau lawm kuj concentrated, nrog niobium ntau lawm nyob rau hauv Brazil thiab Canada ib leeg accounting txog li 98% ntawm cov ntiaj teb tag nrho niobium ntau lawm. North America, Europe rau lub ntsiab noj niobium, Tuam Tshoj kuj yog ib tug loj neeg siv ntawm niobium, Tuam Tshoj tus niobium noj nyob rau hauv 2010 accounted rau ib feem peb ntawm tag nrho cov thoob ntiaj teb noj. Tam sim no, kev lag luam niobium hauv ntiaj teb tau tsim los rau qib siab hauv cov ntsiab lus ntawm cov txiaj ntsig, smelting thiab kev ua haujlwm, nrog rau cov nqi tsim khoom, cov zis, daim ntawv thov thiab kev siv. Ntau yam khoom niobium kuj tau siv dav hauv steel, superconducting cov ntaub ntawv, electronics, kev kho mob thiab lwm yam lag luam, uas niobium noj nyob rau hauv lub tshav pob ntawm hlau thiab hlau yog qhov loj tshaj plaws, suav txog li 90% ntawm tag nrho lub ntiaj teb no noj niobium.