Carbon fiber reinforced resin matrix composites qhia tau hais tias muaj zog thiab nruj dua li cov hlau, tab sis nws ua rau qaug zog tsis ua haujlwm. Kev ua lag luam tus nqi ntawm cov khoom siv fiber ntau ntxiv cov khoom siv sib xyaw ua ke tuaj yeem ncav cuag $ 31 nphom hauv xyoo 2024, tab sis tus nqi ntawm cov txheej txheem kev saib xyuas kev noj qab haus huv txhawm rau txheeb xyuas qhov qaug zog tuaj yeem nce mus txog $ 5.5 billion.
Txhawm rau daws qhov teeb meem no, cov kws tshawb fawb tab tom tshawb nrhiav nano-additives thiab kho tus kheej polymers kom tsis txhob tawg ntawm cov ntaub ntawv. Thaum Lub Kaum Ob Hlis 2021, cov kws tshawb fawb ntawm Washington University's Rensselaer Polytechnic Institute thiab Beijing University of Chemical Technology tau thov cov khoom sib xyaw nrog cov iav zoo li polymer matrix uas tuaj yeem thim rov qab qaug zog puas tsuaj. Lub matrix ntawm cov khoom sib xyaw yog tsim los ntawm cov pa epoxy resins thiab tshwj xeeb epoxy resins hu ua vitrimers. Piv nrog rau cov epoxy resin zoo tib yam, qhov sib txawv tseem ceeb ntawm tus neeg sawv cev vitrifying yog tias thaum rhuab saum toj no qhov kub thiab txias, qhov rov qab sib txuas cov tshuaj tiv thaiv tshwm sim, thiab nws muaj peev xwm kho nws tus kheej.
Txawm tias tom qab 100,000 lub voj voog puas tsuaj, qaug zog hauv cov khoom sib xyaw tuaj yeem thim rov qab los ntawm lub sijhawm cua sov mus rau ib lub sijhawm tsuas yog siab dua 80 ° C. Tsis tas li ntawd, kev siv cov khoom ntawm cov khoom siv carbon los ua kom sov thaum raug rau RF electromagnetic teb tuaj yeem hloov pauv kev siv cov khoom siv cua sov rau kev xaiv kho cov khoom. Txoj hauv kev no hais txog qhov "irreversible" xwm ntawm kev qaug zog puas tsuaj thiab tuaj yeem thim rov qab lossis ncua kev puas tsuaj los ntawm kev qaug zog yuav luag tsis tu ncua, ncua lub neej ntawm cov khoom siv thiab txo cov nqi kho thiab kev ua haujlwm.
CARBON / SILICON CARBIDE FIBER tuaj yeem tiv taus 3500 ° C ULTRA-HIGH TEMPERATURE
NASA's "Interstellar Probe" txoj kev tshawb fawb lub tswv yim, coj los ntawm Johns Hopkins University Applied Physics Laboratory, yuav yog thawj lub hom phiaj los tshawb nrhiav qhov chaw tshaj li peb lub hnub ci, xav tau kev mus ncig sai dua li lwm lub dav hlau. Nyob deb. Yuav kom ncav cuag qhov deb heev ntawm kev kub ceev heev, interstellar probes yuav tsum tau ua ib qho "Obers maneuver," uas yuav viav vias qhov kev sojntsuam ze rau lub hnub thiab siv lub hnub lub ntiajteb txawj nqus los catapult qhov kev sojntsuam mus rau qhov tob tob.
Yuav kom ua tiav lub hom phiaj no, lub teeb yuag, ultra-siab cov ntaub ntawv yuav tsum tau tsim rau lub detector lub hnub ci ntaub thaiv npog. Thaum Lub Xya Hli 2021, American high-temperature material developer Advanced Ceramic Fiber Co., Ltd. thiab Johns Hopkins University Applied Physics Laboratory tau koom tes los tsim lub teeb yuag, ultra-siab kub ceramic fiber ntau uas tuaj yeem tiv taus qhov kub ntawm 3500 ° C. Cov kws tshawb fawb tau hloov cov txheej txheej txheej ntawm txhua qhov carbon fiber filament rau hauv cov hlau carbide xws li silicon carbide (SiC/C) los ntawm kev hloov pauv ncaj qha.
Cov kws tshawb fawb tau sim cov qauv siv cov ntsuas hluav taws xob thiab lub tshuab nqus tsev, thiab cov ntaub ntawv no tau pom tias muaj peev xwm ntawm cov khoom siv hnyav, cov khoom siv hluav taws xob tsawg, txuas ntxiv qhov txwv tam sim no ntawm 2000 ° C rau cov ntaub ntawv carbon fiber, thiab tswj qhov kub ntawm 3500 ° C. Mechanical zog, nws yuav tsum tau siv nyob rau hauv lub hnub ci ntaub thaiv npog ntawm kev sojntsuam yav tom ntej.
Post lub sij hawm: Lub Xya hli ntuj-18-2022