Yog vim li cas recrystallization kub txiav txim lub neej tseeb ntawmMoLa alloy tubes?
Thaum ntau tus neeg yuav khoom xaiv qhov siab - cov kav dej kub, lawv thawj zaug saib qhov melting point thiab lub zog, tab sis qhov tseeb qhov sib txawv ntawm kev siv feem ntau yog "recrystallization temperature" ntawm cov khoom ntawm qhov kub thiab txias. Lub molybdenum-lanthanum alloy raj yog qhov zoo tshaj plaws hauv qhov no. Los ntawm kev ntxiv qhov tsim nyog ntawm lanthanum oxide hais, qhov ntsuas kub ntawm recrystallization tuaj yeem ua tau zoo dua li 1500 degree. Qhov no txhais tau hais tias hauv kev lag luam tiag tiag, cov nplej ntawm cov yeeb nkab tsis yooj yim kom loj hlob sai, cov qauv ruaj khov, thiab nws yuav tsis pib soften los yog deform loj nyob ib ncig ntawm 1200℃zoo li cov ntshiab molybdenum.
Cov yam ntxwv no tsis yog cov ntaub ntawv kuaj, tab sis yog ib qho tseem ceeb uas cuam tshuam ncaj qha rau kev ua haujlwm niaj hnub ntawm lub Hoobkas. Xav txog cov cua sov los yog lub raj txhawb nqa hauv lub tshuab nqus tsev kho cua sov. Yog tias cov khoom siv recrystallizes ntxov ntxov, qhov tseeb qhov tseeb yuav ploj mus, ua rau cov khoom tsis sib xws thiab txawm tias cov khoom siv tsis ua haujlwm. Qhov sib ntxiv ntawm molybdenum-lanthanum alloy tubes tuaj yeem txuas ntxiv lub sijhawm ua haujlwm ntawm cov khoom siv no, hloov lawv, thiab sib txuas ncaj qha rau cov nqi siv.
Los ntawm qhov pom ntawm microscopic, qhov sib npaug ntawm cov lanthanum oxide hais yog zoo li suav tsis txheeb me me "cov ntsia hlau", khov kho pegging kev txav ntawm cov ciam teb. Qhov zoo ntawm dispersion ntxiv dag zog rau cov yeeb nkab kom muaj zog thiab ductility ntawm qhov kub thiab txias, ua rau nws yooj yim rau txheej txheem thiab vuam. Ntau cov khoom siv semiconductor thiab cov neeg siv kev kho cua sov tau tshaj tawm tias cov thermal field uniformity zoo dua tom qab siv, thiab lub sijhawm txij nkawm txuas ntxiv los ntawm ob peb lub hlis mus rau ntau tshaj ib xyoos.
Ntxiv nrog rau qhov zoo ntawm recrystallization kub kom zoo dua, kev ua haujlwm ntawm molybdenum-lanthanum hlab nyob rau hauv cov nqe lus ntawm creep kuj thiab thermal qaug zog kuj ntxiv rau nws. Nws yog qhov tsim nyog rau lub tshuab nqus tsev hluav taws xob hluav taws xob hluav taws xob, cov khoom siv iav electrode, siab -kawg siv lead ua kev loj hlob, thiab lwm lub sijhawm uas yuav tsum tau ua haujlwm ruaj khov. Thaum xaiv cov ntaub ntawv, nws raug nquahu kom tsom mus rau La2O3 cov ntsiab lus, cov yeeb nkab ntom ntom, thiab kev kho saum npoo, uas yuav cuam tshuam rau qhov kev ua tau zoo kawg.
Yog tias koj cov kab ntau lawm tab tom muaj kev kub ntxhov siab -kub tivthaiv hloov mob taub hau, rov ntsuam xyuas cov khoom siv los ntawm qhov ntsuas kub ntawm recrystallization. Molybdenum-lanthanum alloy tubes tuaj yeem ua rau rov qab ruaj khov tshaj qhov kev cia siab. Txais tos kom tso cov lus los yog nug txog kev ua haujlwm tshwj xeeb. Peb tuaj yeem muab cov lus qhia tshwj xeeb thiab cov qauv coj los pab koj nrhiav qhov sib txuam nrog cov tshuaj tiv thaiv kub kub.
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