Cov yam ntxwv cuam tshuam rau kev pabcuam lub neej ntawm Molybdenum Electrodes

 Kev lag luam iav yog kev lag luam ib txwm muaj nrog kev siv zog siab. Nrog rau tus nqi siab ntawm fossil zog thiab kev txhim kho ntawm kev tiv thaiv ib puag ncig, cov thev naus laus zis tau hloov pauv los ntawm cov nplaim hluav taws kub cua sov tshuab rau hluav taws xob melting tshuab. Cov electrode yog cov khoom sib txuas ncaj qha nrog cov iav kua thiab dhau lub zog hluav taws xob mus rau iav kua, uas yog cov khoom siv tseem ceeb hauv iav electrofusion.

 

Molybdenum electrode yog ib qho tseem ceeb ntawm cov khoom siv electrode hauv iav electrofusion vim nws qhov kub thiab txias zog, corrosion tsis kam, thiab nyuaj rau kev pleev xim iav. Nws cia siab tias lub neej kev pabcuam ntawm lub tshuab hluav taws xob yuav ntev npaum li lub hnub nyoog ntawm qhov cub lossis ntau tshaj li lub hnub nyoog ntawm qhov cub, tab sis cov electrode feem ntau yuav puas thaum lub sijhawm siv tiag tiag. Nws yog qhov tseem ceeb tshaj plaws kom nkag siab txog ntau yam cuam tshuam ntawm lub neej kev pab cuam ntawm molybdenum electrodes hauv iav electro-fusion.

 

 

Oxidation ntawm Molybdenum Electrode

Lub molybdenum electrode muaj cov yam ntxwv ntawm qhov kub thiab txias, tab sis nws reacts nrog oxygen ntawm qhov kub thiab txias. Thaum kub txog 400 ℃, lubmolybdenumyuav pib tsim molybdenum oxidation (MoO) thiab molybdenum disulfide (MoO2), uas tuaj yeem ua raws li qhov chaw ntawm molybdenum electrode thiab tsim ib txheej oxide, thiab npaj cov oxidation ntxiv ntawm molybdenum electrode. Thaum kub txog 500 ℃ ~ 700 ℃, molybdenum yuav pib oxidizing rau molybdenum trioxide (MoO3). Nws yog cov roj tsis hloov pauv, uas rhuav tshem cov txheej txheem tiv thaiv ntawm thawj oxide kom lub ntsej muag tshiab nthuav tawm los ntawm molybdenum electrode txuas ntxiv oxidize los ua MoO3. Xws li rov oxidation thiab volatilization ua rau molybdenum electrode tsis tu ncua eroded kom txog thaum nws puas tag.

 

Cov tshuaj tiv thaiv ntawm Molybdenum Electrode rau Cov Khoom hauv Cov iav

Lub molybdenum electrode reacts nrog ib co Cheebtsam los yog impurities nyob rau hauv lub iav tivthaiv ntawm qhov kub thiab txias, ua rau loj erosion ntawm lub electrode. Piv txwv li, cov iav tov nrog As2O3, Sb2O3, thiab Na2SO4 raws li qhov tseeb yog qhov hnyav heev rau kev yaig ntawm molybdenum electrode, uas yuav oxidized rau MoO thiab MoS2.

 

Electrochemical Reaction hauv iav Electrofusion

Cov tshuaj tiv thaiv electrochemical tshwm sim nyob rau hauv cov iav electrofusion, uas yog nyob rau hauv kev sib cuag ntawm molybdenum electrode thiab molten iav. Nyob rau hauv qhov zoo ib nrab voj voog ntawm AC fais fab mov, qhov tsis zoo oxygen ions raug xa mus rau qhov zoo electrode los tso cov hluav taws xob, uas tso tawm cov pa oxygen los ua oxidation ntawm molybdenum electrode. Nyob rau hauv AC fais fab mov tsis zoo ib nrab voj voog, qee cov iav yaj cations (xws li boron) yuav txav mus rau qhov tsis zoo electrode thiab tiam ntawm molybdenum electrode tebchaw, uas yog xoob deposits nyob rau hauv lub electrode nto ua puas lub electrode.

 

Kub thiab ceev tam sim no

Tus nqi yaig ntawm molybdenum electrode nce nrog qhov nce ntawm qhov kub thiab txias. Thaum cov iav muaj pes tsawg leeg thiab cov txheej txheem kub yog qhov ruaj khov, qhov ceev tam sim no dhau los ua qhov tseem ceeb tswj qhov corrosion ntawm electrode. Txawm hais tias qhov siab tshaj plaws uas tau tso cai tam sim no ntawm molybdenum electrode tuaj yeem ncav cuag 2 ~ 3A / cm2, electrode yaig yuav nce ntxiv yog tias qhov tam sim no loj dua.