Cov roj hlau xaim hluav taws xob ntawm Lanthhanum-doped MolyBdenum hlau yog siab dua li cov tshuaj molybdenum siab me me thiab qauv ntawm Molybdenum hlau. Dhau li, cov nyhuv la2o3 thib ob kuj tseem tuaj yeem nce cov chav kub thiab txias ntawm lub Molybdenum hlau thiab txhim kho chav tsev kub ua rau rov ua dua tshiab.
Recrystallization kub sib piv: Lub microstructure ntawm cov ntshiab Molybdenum Hlau tau pom tseeb dav ntawm 900 ℃ thiab recrystallized ntawm 1000. Nrog rau qhov kub thiab txias kub nce, cov nplej ua kom cov nplej kuj nce ntxiv, thiab cov ntaub so ntswg thiab ua kom qeeb qeeb txo. Thaum lub annealing kub nce mus txog 1200 ℃, Molybdenum hlau tau ua tiav cov recrystallized, thiab nws cov micrertructure qhia tau zoo li qub equiaeved recrystallized nplej. Raws li qhov ntsuas kub nce ntxiv, cov noob nplej loj hlob tsis zoo thiab zoo li coarse cov nplej. Thaum annealed ntawm 1500 ℃, Molybdenum hlau yooj yim tawg, thiab nws cov qauv qhia cov coarsearsexed. Cov qauv fiber ntau ntawm lanthhanum-doped Molybdenum hlau Broaded tom qab Annealed ntawm 1300 thiab cov hniav zoo li pom ntawm tus ciam ntawm cov fiber. Ntawm 1400 ℃, cov recrystallized nplej tau tshwm sim. Ntawm 1500 ℃, cov ntaub ntawv fiber ntau txo qis qis, thiab cov qauv recrystallized tau tshwm sim obviously, thiab cov nplej tau loj hlob tsis xwm yeem. Cov tshuaj hlau xaim hluav taws xob ntawm Lanthhanum-doped Molybdenum Hlau yog siab tshaj li ntawm cov ntshiab Molybdenum Hlau, uas yog vim muaj txiaj ntsig ntawm La2O3 thib ob theem. Lub La2O3 Thib Ob Theem Hinders cov nplej Ciam Teb Chaw tsiv teb tsaws thiab cov qoob loo grain, yog li nce cov recrystallization kub.
Chav Siv Kub Cov Khoom Sib Tw: Lub elongation ntawm ntshiab Molybdenum Hlau siv nrog annealing kub nce ntxiv. Thaum lub anneeal kub ntawm 1200 ℃, lub elongation ncav qhov siab tshaj plaws. Lub elongation txo nrog anneal kub nce. Annealed ntawm 1500 ℃, thiab nws elongation yuav luag sib npaug rau xoom. Lub elongation ntawm la-doped Molybdenum hlau zoo ib yam li ntshiab Molybdenum hlau, thiab tus nqi elongation mus txog qhov siab kawg thaum annealed ntawm 1200 ℃. Thiab tom qab ntawd lub elongation txo nrog kub nce zuj zus. Qhov sib txawv tsuas yog cov nqi txo qis qeeb qeeb. Txawm hais tias Elongation ntawm Lanthhanum-doped MolyBdenum hlau tau qeeb qeeb tom qab annaling ntawm 1200 ℃, lub elongation yog siab dua li ntshiab Molybdenum hlau.
Lub Sijhawm Post: Dec-19-2021