Graphite Crucible yog dab tsi?

Q1: Dab tsi yog graphite crucible?
A1: Graphite crucible yog ib hom khoom siv hauv chav kuaj siv rau cua sov lossis ua cov tshuaj lom neeg ntawm qhov kub thiab txias. Nws yog ua los ntawm high-purity graphite. Vim tias graphite muaj qhov kub thiab txias tsis kam thiab tshuaj lom neeg ruaj khov, nws tuaj yeem tiv taus qhov kub thiab txias, thiab kev sim feem ntau tuaj yeem ua tau ntawm qhov kub ntawm ntau txhiab degrees Celsius. Feem ntau siv rau hauv melting, combustion, evaporation thiab lwm yam tshuaj tiv thaiv thermochemical ntawm qhov kub thiab txias. Graphite crucibles yog dav siv nyob rau hauv ntau yam chemistry, ntaub ntawv science thiab metallurgy.
Q2: Dab tsi yog cov yam ntxwv thiab kev ua haujlwm ntawm graphite crucible?
A2: Kev kub siab ua haujlwm: Graphite crucible tuaj yeem tiv taus qhov kub thiab txias thiab feem ntau tuaj yeem ua cov kev sim ntawm qhov kub ntawm ntau txhiab degrees Celsius, uas ua rau nws haum rau ntau yam tshuaj tiv thaiv thiab kev sim melting ntawm qhov kub thiab txias.
Chemical stability: Graphite crucible muaj cov tshuaj ruaj khov zoo thiab tsis yooj yim rau kev hnov ​​​​mob nrog ntau yam tshuaj lom neeg, yog li nws tuaj yeem siv los tswj ntau yam tshuaj, suav nrog cov kua qaub muaj zog, muaj zog alkali thiab cov tshuaj corrosive.
Thermal conductivity: Graphite muaj cov thermal conductivity zoo heev thiab tuaj yeem ua cua sov sai thiab sib npaug, ua rau cov qauv ua kom sov dua, uas ua rau muaj kev ruaj ntseg thiab raug ntawm qhov kev sim.
Mechanical zog: Graphite crucibles feem ntau muaj lub zog txhua yam thiab tuaj yeem tiv taus cov neeg kho tshuab kev ntxhov siab thaum cua sov thiab txias, thiab tsis yooj yim rau tawg lossis deform.
Tsawg adsorption: Graphite crucible muaj tsawg adsorption thiab tsis yooj yim rau adsorb cov qauv lossis ua rau cuam tshuam, uas ua rau muaj qhov tseeb ntawm qhov kev sim.
Reusable: Vim lawv cov kav ntev thiab tshuaj lom neeg ruaj khov, graphite crucibles feem ntau tuaj yeem siv ntau zaus, txuag nqi thiab txo cov khoom pov tseg.