Dab tsi yog zirconium thiab zirconium alloy hlau
Zirconium yog cov khoom siv tshuaj lom neeg thiab cov khoom siv feem ntau yog tsim los ntawm zirconium thiab lwm yam khoom (xws li tin, niobium thiab chromium) hauv cov ntsiab lus sib txawv. Nws cov cim tshuaj yog Zr thiab nws tus lej atomic yog 40. Nws yog cov nyiaj dawb-dawb, ci hlau uas muaj zog corrosion kuj thiab kub tsis kam. Nws yog tsuas yog muab rho tawm los ntawm cov ntxhia zircon. Zirconium alloys ua lub luag haujlwm tseem ceeb hauv ntau daim ntawv thov kev lag luam. Cov alloys no tau siv dav hauv ntau qhov kev lag luam vim lawv cov khoom zoo thiab cov yam ntxwv.
Performance thiab nta:
Corrosion kuj: Zirconium alloys tau soj ntsuam dav hauv kev lag luam tshuaj rau lawv cov kev tiv thaiv zoo heev. Nws tuaj yeem tiv taus cov xov xwm corrosive xws li acids, alkalis, thiab ntsev, yog li nws feem ntau siv rau hauv cov khoom siv tshuaj thiab kev lag luam nuclear.
Cov ntsiab lus melting siab: Nws muaj qhov siab melting point ntawm kwv yees li 1855 degree (3371 degree F), uas ua rau nws ruaj khov nyob rau hauv qhov kub thiab txias.
Tsawg-thermal neutron sib npaug: Cov capacitors muaj cov qauv tsis haum rau cov neutrons, uas ua rau lawv tseem ceeb rau cladding thiab cov khoom siv hauv nuclear reactors.
Cov khoom siv zoo: Zirconium alloy muaj lub zog zoo thiab tawv thiab tsim nyog rau kev siv engineering hauv qhov kub thiab txias.
Biocompatibility: Vim nws biocompatibility, pyrometal kuj yog siv rau hauv kev kho mob cog xws li cov pob qij txha.
Zirconium alloys muaj ntau yam khoom, qee qhov yog:
muaj peev xwm tiv taus qhov kub thiab txias
zoo corrosion kuj
Tsawg thermal conductivity
tsawg neutron absorption
Siab zog rau qhov hnyav piv
zoo ductility
Qee qib thiab kev siv ntawm zirconium alloys:
Zr-702: Tsim nyog rau cov khoom siv tiv thaiv corrosion thiab ntim hauv kev lag luam tshuaj, xws li reactors thiab cov khoom siv hluav taws xob.
Zr-704: Zoo ib yam li Zr-702, nws yog siv rau cov khoom siv tiv thaiv corrosion hauv kev lag luam tshuaj.
Zr-705: Resistant corrosion nyob rau hauv high-temperature ib puag ncig uas muaj fluorinated compounds, haum rau silica kev lag luam.
Zr-706: Kev tiv thaiv zoo heev hauv sulfuric acid thiab sulfate ib puag ncig, siv hauv cov khoom siv tshuaj.
Zr-710: Siv nyob rau hauv kev lag luam nuclear ua cov khoom siv xws li kev txhawb nqa roj.
Zr-711: Siv nyob rau hauv kev lag luam nuclear rau nuclear roj cladding.
Zr-712: Tsim nyog rau cladding cov ntaub ntawv nyob rau hauv lub nuclear kev lag luam thiab cov khoom siv nyob rau hauv nuclear reactors.
Zirconium alloys muab faib ua peb qib raws li lawv muaj pes tsawg leeg:
Zircloy{{0}}: Muaj 1.0-1.2% tin thiab 0.1-0.2% hlau.
Zircloy{{0}}: Muaj 1.7-2 0% tin, 0.1% hlau, thiab 0.05% chromium.
Zircloy{{0}}}: Muaj 0 8-1.2% tin, 0.1% hlau, thiab 0.17-0.25% niobium .
Zirconium thiab nws cov alloys tau siv dav hauv ntau qhov kev lag luam vim lawv cov khoom zoo thiab cov yam ntxwv
Nuclear reactor: Zirconium alloy yog siv los ua cov khoom siv cladding ntawm nuclear roj sib dhos vim nws cov thermal neutron me me capture cross-section thiab muaj zog corrosion kuj.
Kev Siv Tshuaj: Zirconium alloys tau siv dav hauv kev ua tshuaj lom neeg vim tias lawv tuaj yeem tiv taus ntau yam corrosive ib puag ncig.
Aerospace: Zirconium alloys yog siv rau hauv kev lag luam aerospace vim lawv lub zog-rau-qhov hnyav piv thiab zoo ductility.
Kev kho mob cog: Zirconium alloy muaj biocompatibility zoo thiab corrosion kuj thiab yog cov khoom cog zoo heev.
nyob rau hauv xaus:
Zirconium thiab zirconium alloys yog dav siv hauv kev lag luam nuclear, kev lag luam tshuaj, khoom siv kho mob, cog kev kho mob, aerospace thiab lwm yam kev lag luam. Lawv corrosion kuj, kub stability thiab txhua yam khoom ua rau lawv ib qho tseem ceeb engineering khoom. Muaj nyob rau hauv ntau qib thiab daim ntawv thov, cov alloys yuav txuas ntxiv mus ua lub luag haujlwm tseem ceeb hauv ntau yam kev lag luam. Zirconium alloy qib thiab daim ntawv thov tuaj yeem xaiv raws li cov kev xav tau tshwj xeeb kom ua tau raws li cov kev cai ib puag ncig thiab engineering.
