Niobium, tantalum, thiab tungstenyog tag nrho cov feem ntau siv nyob rau hauv zus tau tej cov high-zoo crucibles. Txhua yam khoom muaj nws cov khoom tshwj xeeb thiab qhov zoo, ua rau lawv zoo tagnrho rau kev siv sib txawv.
Niobium yog cov hlau uas muaj zog, corrosion-resistant uas feem ntau siv los tsim cov crucibles rau lub tshuab nqus tsev arc melting thiab lwm yam kev siv kub. Nws muaj lub siab melting point thiab yog resistant rau feem ntau corrosive tshuaj, ua rau nws yog ib qho zoo tagnrho xaiv rau daim ntaub ntawv uas cov tshuaj ib puag ncig yog hnyav.
Tantalum kuj yog cov hlau uas muaj zog thiab corrosion-resistant, tab sis nws tseem tiv taus corrosion ntau dua li niobium. Qhov no ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau cov ntawv thov uas lub crucible yuav raug rau cov khoom corrosive heev lossis ib puag ncig. Tantalum crucibles feem ntau yog siv rau hauv kev tsim cov hlau purity siab, semiconductors, thiab lwm yam khoom siv siab heev.
Tungsten paub txog nws qhov siab melting point, ua rau nws yog ib qho kev xaiv zoo rau cov ntawv thov uas yuav tsum tau muaj qhov kub thiab txias heev. Nws kuj tseem tiv taus thermal shock thiab mechanical stress, ua rau nws zoo tagnrho rau cov ntawv thov uas lub crucible yuav raug rau huab cua phem. Tungsten crucibles feem ntau yog siv los tsim cov hlau, iav, thiab lwm yam khoom siv siab heev.
Zuag qhia tag nrho, kev xaiv ntawm cov khoom siv rau lub crucible yog nyob ntawm cov kev cai tshwj xeeb ntawm daim ntawv thov. Niobium, tantalum, thiab tungsten tag nrho muaj qhov tshwj xeeb zoo thiab cov khoom, ua rau lawv zoo tagnrho rau ntau hom kev siv. Los ntawm kev xaiv cov khoom tsim nyog rau txoj haujlwm, cov tuam ntxhab tuaj yeem ua kom muaj txiaj ntsig zoo tshaj plaws hauv lawv cov txheej txheem tsim khoom.
