Ho ea ka tlaleho ea morao-rao, moloko o latelang oa lisebelisoa tse kopantsoeng o ka shebella boemo ba bona ba bophelo bo botle ba sebopeho, 'me oa fetoha o tloaelehileng.
Li-composites tsa carbon fiber li bobebe ebile li tiile 'me ke lisebelisoa tsa bohlokoa tsa meralo ea likoloi, lifofane le mekhoa e meng ea lipalangoang. Li na le li-polymer substrates, joalo ka li-epoxy resin, tse kentsoeng ka likhoele tsa khabone tse matlafalitsoeng. Ka lebaka la mekhoa e fapaneng ea mechine ea lisebelisoa tse peli, likhoele li tla oa ho tloha substrate tlas'a khatello e feteletseng kapa mokhathala. Sena se bolela hore tšenyo e entsoeng ka carbon fiber composite e ka 'na ea ntse e patiloe ka tlas'a bokaholimo' me e ke ke ea bonoa ka mahlo, e leng se ka lebisang ho hlōleha ho kotsi.
"Ka ho utloisisa bokahare ba metsoako, u ka ahlola bophelo ba bona hantle 'me ua tseba hore na ho na le tšenyo leha e le efe e lokelang ho lokisoa," Ridge Chris Bowland, mofuputsi ho
Oak Ridge National Laboratory Lefapheng la Eneji la US (Oak National Laboratory) Wigner. Haufinyane tjena, Amit Naskar, hlooho ea sehlopha sa k'habone le metsoako ea Bowland le ORNL, o ile a qapa mokhoa oa ho roala likhoele ho phuthela likhoele tsa khabone ka semiconductor silicon carbide nanoparticles. polymer, likhoele li etsa marang-rang a matla, 'me li-composites tse ngata li tsamaisa motlakase oa semiconductor tlas'a ts'ebetso ea matla a ka ntle, ho eketsa ts'ebetso ea mechine le ea motlakase ho li-composites, ho hokahanngoa ha likhoele tse koahetsoeng ho tla senyeha, 'me ho hanyetsa ho ka fetoha k'homphieutha ea sefofane ho bontša hore lepheo le tlas'a khatello e matla haholo 'me le fana ka maikutlo a teko The rolling strip demonstration of ORNL e paka ka molao-motheo hore mokhoa o ka hlahisa moloko o latelang oa likhoele tse koahetsoeng ka tekanyo e kholo.Li-composites tsa ho iponahatsa, mohlomong tse entsoeng ho tloha ho li-polymer substrates le theko e tlaase ea carbon fibers, ho kenyelletsa le lihlahisoa tsa carquitous tsa carquitous likhoele tse kentsoeng ka har'a li-nanoparticles, bafuputsi ba kentse li-spools tsa carbon fiber tse sebetsang hantle holim'a li-roller, 'me li-rollers li kolobisa likhoele ka har'a li-epoxy resin, tse nang le nanoparticles' marakeng, bophara ba eona e ka bang bophara ba vaerase (45-65 nm).
Joale likhoele li omisoa ka ontong ho tiisa hore li koahetsoe. E le ho leka matla a likhoele tse kentsoeng ka nanoparticles tse khomaretsoeng ho substrate ea polymer, bafuputsi ba ile ba etsa lipalo tse entsoeng ka fiber-reinforced composite, tse neng li hlophisitsoe ka Tsela e le 'ngoe. E le ho ithuta bokhoni ba ho lemoha ba thepa e kopantsoeng, o ile a kenya li-electrode mahlakoreng ka bobeli a sefate sa cantilever. Mochineng o tsejoang e le "Dynamic mechanical analyzer," o ile a pata ntlha e le 'ngoe ho boloka cantilever e eme. Mochini o sebelisa matla ka lehlakoreng le leng ho koba leballo le emisitsoeng ha Bowland e ntse e shebile phetoho ea khanyetso. ORNL, mofuputsi oa postdoctoral Ngoc Nguyen, o ile a etsa liteko tse ling ho Fourier Transform Infrared spectrometer ho ithuta libonto tsa lik'hemik'hale ka har'a metsoako le ho ntlafatsa kutloisiso ea matla a ntlafalitsoeng a mochini a bonoang. Bafuputsi ba ile ba boela ba leka bokhoni ba matla a dissipative a metsoako e entsoeng ka bongata bo fapaneng ba nanoparticles (e lekantsoeng ka boitšoaro ba ho thothomela), e leng se neng se tla thusa karabelo ea thepa ea meralo ho makala, ho thothomela le khatello ea maikutlo le mehloli e meng ea khatello. Nakong e 'ngoe le e' ngoe ea mahloriso, li-nanoparticles li ka ntlafatsa ho senyeha ha matla (ho tloha ho 65% ho ea ho 257% ho ea ho likhato tse fapaneng). Bowland le Naskar ba kentse kopo ea patent ea ts'ebetso bakeng sa ho etsa li-composite tsa carbon fiber tse ithusang.
"Liaparo tse kentsoeng li fana ka mokhoa o mocha oa ho nka monyetla ka li-nanomaterials tse ncha tse ntseng li ntlafatsoa." Bowland o itse. Boithuto bona bo tšehelitsoe ke merero ea lipatlisiso le nts'etsopele e tsamaisoang ke Laboratori ea ORNL, e hatisitsoeng koranteng ea ACS Applied Materials and Interfaces (Applied Materials & Interfaces) ea American Chemical Society.
Nako ea poso: Dec-07-2018