Taw qhia rau niobium Cheebtsam hauv niobium raj
Niobium muaj qhov ntom ntawm 8.57g / cm3, lub melting point ntawm 2477 degree, thiab lub boiling point ntawm 4744 degree. Niobium yog nyiaj-grey, mos, ductile, tsawg, high-melting-point hlau. Nyob rau hauv chav tsev kub, niobium tsis hnov mob nrog huab cua, thiab yuav tsis tag oxidized thaum liab-kub hauv oxygen. Niobium tuaj yeem sib txuas ncaj qha nrog sulfur, nitrogen, thiab carbon ntawm qhov kub thiab txias. Niobium tsis hnov mob nrog inorganic acids lossis alkalis, thiab tsis yaj hauv aqua regia, tab sis yog soluble hauv hydrofluoric acid. Vim hais tias niobium muaj superconductivity zoo, siab melting point, corrosion kuj, hnav tsis kam, thiab lwm yam, nws yog dav siv nyob rau hauv steel, superconducting cov ntaub ntawv, aerospace, atomic zog thiab lwm yam teb.
peb qhov kev pabcuam
1. Cov chaw tsim khoom tshaj lij--15 xyoo dhau los
2. Kev tswj xyuas nruj - SGS tshuaj xyuas
3. Muaj peev xwm muab tau siab --3000MT/ hli
4. Kev xa khoom sai - tsis pub dhau 15 hnub
Kev mus ntsib cov neeg yuav khoom thiab cov tuam txhab ib puag ncig cov duab
Zhenan muaj nws tus kheej kev thauj mus los pab pawg, nrog cov khoom muag txaus thiab xa khoom raws sijhawm. Yog tias koj muaj lus nug txog hlau, thov hu rau peb.