Kev Siv Cov Hlau Tsis Muaj Lub Ntiaj Teb

Kev siv cov hlau tsis tshua muaj ntiaj teb
Xyoo 1980, qhov ntim ntawm cov khoom tsis tshua muaj ntiaj teb thoob ntiaj teb yog kwv yees li 34000 tons (xws li oxides), feem ntau yog siv hauv kev lag luam xws li metallurgy, petrochemical, iav ceramics, fluorescence, thiab cov khoom siv hluav taws xob. Ntiaj teb kev faib khoom faib piv rau xyoo (tsis suav nrog Tuam Tshoj).
Cov hlau tsis tshua muaj hauv ntiaj teb thiab lawv cov alloys ua lub luag haujlwm hauv deoxygenation thiab desulfurization hauv steelmaking, txo cov ntsiab lus ntawm ob qho tib si rau hauv qab {{0}}.001 feem pua, hloov cov morphology ntawm inclusions, refining nplej, thiab txhim kho cov kev ua tau zoo. ntawm steel, txhim khu lub zog, toughness, corrosion kuj, thiab oxidation kuj. Cov hlau tsis tshua muaj hauv ntiaj teb thiab lawv cov alloys yog siv los tsim cov hlau tsis muaj zog, lub zog loj grey hlau, thiab vermicular graphite cam khwb cia hlau, uas tuaj yeem hloov cov morphology ntawm graphite hauv cam khwb cia hlau, txhim kho cov cuab yeej casting, thiab txhim kho cov khoom siv ntawm cov cam khwb cia hlau (alloy. steel, cam khwb cia hlau). Ntxiv ib qho me me ntawm cov hlau tsis tshua muaj hauv lub ntiaj teb smelting ntawm bronze thiab tooj dag tuaj yeem txhim kho lub zog, elongation, kub tsis kam, thiab conductivity ntawm cov hlau. Ntxiv 1-1.5 feem pua ​​​​ntawm cov hlau tsis tshua muaj hauv ntiaj teb los cam khwb cia txhuas silicon alloys tuaj yeem txhim kho qhov kub thiab txias. Ntxiv cov hlau tsis tshua muaj hauv ntiaj teb rau aluminium alloy xov hlau tuaj yeem txhim kho lub zog tensile thiab corrosion kuj. Ntxiv 0.3 feem pua ​​​​ntawm cov hlau tsis tshua muaj hauv ntiaj teb rau Fe-Cr-Al hluav taws xob cua sov alloy tuaj yeem txhim kho oxidation tsis kam, ua kom muaj zog, thiab lub zog kub. Ntxiv cov hlau tsis tshua muaj hauv ntiaj teb rau titanium thiab nws cov alloys tuaj yeem txhim kho cov qoob loo loj, txo tus nqi nkag, thiab txhim kho qhov kub thiab txias corrosion.
Microspherical molecular sieves npaj los ntawm cerium sib xyaw tsis tshua muaj ntiaj teb chlorides thiab lanthanum nplua nuj tsawg lub ntiaj teb chlorides yog siv nyob rau hauv cov roj av catalytic cracking txheej txheem. Tsis tshua muaj lub ntiaj teb hlau thiab kev hloov pauv hlau sib xyaw oxide catalysts yog siv rau kev ua kom huv si, uas tuaj yeem hloov cov pa roj carbon monoxide thiab carbon hydride rau hauv carbon dioxide thiab dej. Lub praseodymium neodymium naphthenic acid alkyl aluminium chloride alkyl aluminium ternary system catalyst yog siv rau kev sib txuas ntawm roj hmab.
Tsis tshua muaj lub ntiaj teb polishing hmoov yog siv rau polishing ntau yam iav li, thaum CeO2 yog siv rau iav decolorization thaum txhim kho nws cov pob tshab; Pr6O11, Nd2O3, thiab lwm yam yog siv rau cov xim iav; La2O3, Nd2O3, CeO2, thiab lwm yam yog siv rau hauv kev tsim cov iav tshwj xeeb; Cov ntsiab lus tsis tshua muaj hauv ntiaj teb tuaj yeem siv rau hauv kev lag luam ceramic los tsim cov iav glaze, cov ntaub ntawv refractory, thiab cov ntaub ntawv ceramic. Tib lub ntiaj teb purity tsis tshua muaj oxides xws li Y2O3, Eu2O3, Gd2O3, La2O3, Tb4O7 yog siv los ua ke ntau yam fluorescent cov ntaub ntawv, xws li liab fluorescent hmoov rau xim TV, dawb fluorescent hmoov rau projection TV, ultra luv luv afterglow fluorescent hmoov, ntau yam fluorescent. hmoov rau lub teeb, fluorescent hmoov rau X-ray intensifying cov ntxaij vab tshaus, thiab fluorescent cov ntaub ntawv rau lub teeb hloov dua siab tshiab. Tsis tshua muaj lub ntiaj teb hlau iodides yog siv nyob rau hauv kev tsim cov hlau halide teeb, nrog ib tug luminous efficiency ntawm 80-100 lumens/watt thiab ib tug xim kub ntawm 5500-6000K, uas yog ze rau lub hnub ci. Lawv tuaj yeem hloov carbon rod arc teeb ua qhov chaw teeb pom kev zoo. High purity Y2O3, Nd2O3, Ho2O3, thiab Gd2O3 yog cov khoom siv laser zoo heev.
Lub ntiaj teb tsis tshua muaj cobalt nyuaj sib nqus hlau npaj nrog cov hlau tsis tshua muaj hauv ntiaj teb muaj qhov zoo ntawm kev ua siab ntev thiab siab coercivity. Yttrium hlau garnet (YIG) ferrite yog ib qho siv lead ua lossis polycrystalline ferromagnetic khoom ua los ntawm high-purity Y2O3 thiab hlau oxide. Lawv siv rau cov khoom siv microwave xws li YIG cov khoom siv. High purity Gd2O3 yog siv los npaj gadolinium gallium garnet (GGG), thiab nws ib leeg siv lead ua yog siv los ua substrate rau magnetic npuas.