Li-composite tsa matrix tsa carbon fiber li bonts'a matla a khethehileng le ho satalla ho feta litšepe, empa li tloaetse ho khathala. Theko ea 'maraka ea li-composite tsa resin e matlafalitsoeng ka carbon e ka fihla ho $31 bilione ka 2024, empa litšenyehelo tsa mokhoa oa ho lekola bophelo bo botle ho bona tšenyo ea mokhathala li ka ba holimo ho $5.5 bilione.
Ho rarolla bothata bona, bafuputsi ba ntse ba hlahloba li-nano-additives le li-polymers tsa ho ipholisa ho thibela mapetsong ho hasana ka thepa. Ka December 2021, bafuputsi Univesithing ea Washington ea Rensselaer Polytechnic Institute le Univesithi ea Beijing ea Chemical Technology ba ile ba etsa tlhahiso ea thepa e nang le motsoako o nang le khalase ea polymer matrix e ka fetolang tšenyo ea mokhathala. Matrix a motsoako o entsoe ka li-resin tse tloaelehileng tsa epoxy le li-resin tse khethehileng tsa epoxy tse bitsoang vitrimers. Ha ho bapisoa le resin e tloaelehileng ea epoxy, phapang e ka sehloohong pakeng tsa vitrifying agent ke hore ha e futhumala ka holim'a mocheso o boima, ho hlaha karabelo e ka fetoloang ea sefapano, 'me e na le bokhoni ba ho itokisa.
Esita le ka mor'a hore ho be le lipotoloho tse 100,000 tsa tšenyo, mokhathala o ka har'a metsoako o ka khutlisoa ka ho futhumatsa nako le nako ho fihlela ka nako e ka holimo ho 80°C. Ntle le moo, ho sebelisa hampe thepa ea thepa ea khabone ho futhumatsa ha e pepeselitsoe masimong a motlakase oa RF ho ka nka sebaka sa ts'ebeliso ea liheater tse tloaelehileng bakeng sa ho lokisa likaroloana tse ikhethileng. Mokhoa ona o sebetsana le "sebaka se ke keng sa lokisoa" sa tšenyo ea mokhathala 'me e ka khutlisa kapa ea liehisa tšenyo e bakiloeng ke mokhathala hoo e ka bang ka nako e sa lekanyetsoang, ea lelefatsa bophelo ba thepa ea meralo le ho fokotsa litšenyehelo tsa tlhokomelo le ts'ebetso.
KHABONE / SILICON CARBIDE FIBER E KA MAMELA 3500 ° C ULTRA-HIGH TEMPERATURE
Thuto ea mohopolo ea NASA ea "Interstellar Probe", e etelletsoeng pele ke Johns Hopkins University Applied Physics Laboratory, e tla ba thomo ea pele ea ho hlahloba sebaka se ka ntle ho tsamaiso ea lipolanete tsa rona, e hlokang ho tsamaea ka lebelo le potlakileng ho feta sepakapaka sefe kapa sefe. Hole. E le hore li khone ho fihla sebaka se selelele ka lebelo le phahameng haholo, li-interstellar probes li ka ’na tsa hloka ho etsa "Obers maneuver," e neng e tla suthisetsa phuputso haufi le letsatsi ebe e sebelisa matla a khoheli a letsatsi ho isa phuputso sebakeng se tebileng.
Ho fihlela sepheo sena, ho hloka hore ho hlahisoe thepa e bobebe, ea mocheso o phahameng haholo bakeng sa thebe ea letsatsi ea detector. Ka Phupu 2021, moetsi oa thepa ea mocheso o phahameng oa Amerika, Advanced Ceramic Fiber Co., Ltd. le Johns Hopkins University Applied Physics Laboratory li ile tsa sebelisana ho theha fiber ea ceramic e bobebe, e phahameng haholo e khonang ho mamella mocheso o phahameng oa 3500°C. Bafuputsi ba ile ba fetola karolo e ka ntle ea carbon fiber filament ka har'a carbide ea tšepe e kang silicon carbide (SiC / C) ka mokhoa o tobileng oa ho fetola.
Bafuputsi ba ile ba lekola lisampole ba sebelisa liteko tsa lelakabe le ho futhumala, 'me lisebelisoa tsena li bonts'a bokhoni ba lisebelisoa tse bobebe, tse tlase tsa khatello ea mouoane, li eketsa moeli oa hajoale oa 2000 ° C bakeng sa lisebelisoa tsa carbon fiber, le ho boloka mocheso o itseng ho 3500 ° C. Matla a mochine, ho lebeletsoe hore a sebelisoe thebe ea letsatsi ea probe nakong e tlang.
Nako ea poso: Jul-18-2022