Carbon fiber ƙarfafa resin matrix composites suna nuna mafi kyawun takamaiman ƙarfi da taurin fiye da ƙarfe, amma suna da haɗari ga gazawar gajiya. Ƙimar kasuwa na abubuwan haɗin gwiwar resin fiber na carbon fiber na iya kaiwa dala biliyan 31 a cikin 2024, amma farashin tsarin kula da lafiya don gano lalacewar gajiya zai iya haura dala biliyan 5.5.
Don magance wannan matsala, masu bincike suna bincikar nano-additives da polymers masu warkarwa da kansu don dakatar da fasa daga yadawa a cikin kayan. A cikin Disamba 2021, masu bincike a Cibiyar Fasaha ta Rensselaer ta Jami'ar Washington da Jami'ar Fasaha ta Fasaha ta Beijing sun ba da shawarar wani abu mai haɗe tare da matrix kamar gilashin polymer wanda zai iya juyar da lalacewar gajiya. Matrix na hadaddiyar giyar ta ƙunshi resins epoxy na al'ada da resin epoxy na musamman da ake kira vitrimers. Idan aka kwatanta da resin epoxy na yau da kullun, babban bambanci tsakanin wakili mai vitrifying shine lokacin da mai zafi sama da matsanancin zafin jiki, halayen haɗin giciye mai juyawa yana faruwa, kuma yana da ikon gyara kanta.
Ko da bayan zagayowar lalacewa 100,000, gajiya a cikin abubuwan haɗin gwiwa na iya juyawa ta hanyar dumama lokaci-lokaci zuwa wani lokaci sama da 80°C. Bugu da ƙari, yin amfani da kaddarorin kayan carbon don yin zafi lokacin da aka fallasa su zuwa filayen lantarki na RF na iya maye gurbin amfani da dumama na al'ada don zaɓin gyara abubuwan. Wannan tsarin yana magance yanayin "ba za a iya jujjuyawa" na lalacewar gajiya ba kuma yana iya juyawa ko jinkirta lalacewa mai lalacewa ta hanyar lalacewa kusan har abada, tsawaita rayuwar kayan gini da rage kulawa da farashin aiki.
CARBON / SILICON KARBIDE FIBER ANA IYA JUYIN MATSALAR MATSALAR 3500 ° C
Binciken ra'ayi na "Interstellar Probe" na NASA, wanda Cibiyar Nazarin Kimiyyar Kimiyya ta Jami'ar Johns Hopkins, za ta kasance manufa ta farko don gano sararin samaniya fiye da tsarin hasken rana, yana buƙatar tafiya cikin sauri fiye da kowane jirgin sama. Nisa Don samun damar isa ga nesa mai nisa cikin sauri sosai, masu binciken interstellar na iya buƙatar yin “Obers maneuver,” wanda zai karkata binciken kusa da rana kuma ya yi amfani da zafin rana don yaɗa binciken zuwa sararin samaniya mai zurfi.
Don cimma wannan burin, ana buƙatar samar da wani abu mai nauyi, mai tsananin zafi don garkuwar hasken rana. A cikin Yuli 2021, Amurka mai haɓaka kayan zafi mai haɓaka Advanced Ceramic Fiber Co., Ltd. da Johns Hopkins Laboratory Applied Physics Laboratory sun haɗu don haɓaka fiber yumbu mai nauyi mai nauyi, matsananciyar zafin jiki wanda zai iya jure yanayin zafi na 3500°C. Masu binciken sun canza yanayin waje na kowane filament na carbon fiber zuwa wani ƙarfe na ƙarfe kamar silicon carbide (SiC/C) ta hanyar tsarin juyawa kai tsaye.
Masu binciken sun gwada samfuran ta amfani da gwajin harshen wuta da dumama injin, kuma waɗannan kayan sun nuna yuwuwar yuwuwar nauyin nauyi, ƙarancin tururi mai ƙarfi, ƙaddamar da ƙayyadaddun babba na yanzu na 2000 ° C don kayan fiber carbon, da kiyaye takamaiman zafin jiki a 3500 ° C. Ƙarfin injiniya, ana sa ran za a yi amfani da shi a cikin garkuwar hasken rana na bincike a nan gaba.
Lokacin aikawa: Jul-18-2022