A cikin lu'u-lu'u, tsarin lu'u-lu'u kuma ana kiransa tsarin lu'u-lu'u na lu'u-lu'u, wanda aka samo shi ta hanyar haɗin kai na carbon atom.Yawancin matsananciyar kaddarorin lu'u-lu'u sune sakamakon kai tsaye na sp³ covalent bond ƙarfi wanda ke samar da tsayayyen tsari da ƙaramin adadin carbon atom.Karfe yana gudanar da zafi ta hanyar lantarki kyauta, kuma yawan zafinsa yana da alaƙa da haɓakar wutar lantarki.Sabanin haka, tafiyar da zafi a cikin lu'u-lu'u yana samuwa ne kawai ta hanyar girgizar lattice (watau phonons).Ƙaƙƙarfan haɗin gwiwa mai ƙarfi tsakanin atom ɗin lu'u-lu'u yana sa tsayayyen lattice ɗin kristal yana da mitar girgiza, don haka yanayin yanayin Debye ɗin sa ya kai 2,220 K.
Tunda yawancin aikace-aikacen sun fi ƙasa da zafin Debye, watsawar phonon kaɗan ne, don haka juriya na zafin zafi tare da phonon a matsayin matsakaici yana da ƙanƙanta.Amma duk wani lahani na lattice zai haifar da tarwatsewar phonon, ta haka zai rage yawan zafin jiki, wanda shine sifa ta dukkan kayan kristal.Lalacewar lu'u-lu'u yawanci sun haɗa da lahani kamar su isotopes masu nauyi ˡ³C, ƙazanta nitrogen da guraben aiki, tsawaita lahani kamar tari da ɓarna, da lahani na 2D kamar iyakokin hatsi.
Lu'u lu'u lu'u-lu'u yana da tsarin tetrahedral na yau da kullum, wanda dukkanin nau'i-nau'i 4 na carbon atom za su iya samar da haɗin kai, don haka babu electrons kyauta, don haka lu'u-lu'u ba zai iya gudanar da wutar lantarki ba.
Bugu da kari, carbon atom a cikin lu'u-lu'u ana haɗe su ta hanyar ginshiƙai huɗu.Saboda haɗin CC a cikin lu'u-lu'u yana da ƙarfi sosai, duk valence electrons suna shiga cikin samar da covalent bonds, suna samar da tsarin crystal mai siffar pyramid, don haka taurin lu'u-lu'u yana da girma sosai kuma wurin narkewa yana da girma.Kuma wannan tsarin na lu'u-lu'u shima yana sanya shi ɗaukar nau'ikan haske kaɗan kaɗan, yawancin hasken da ke haskakawa akan lu'u-lu'u yana haskakawa, don haka ko da yake yana da wahala sosai, yana kama da bayyane.
A halin yanzu, mafi shaharar kayan watsar da zafi sun fi zama membobin dangin nano-carbon, gami dananodiamond, Nano-graphene, graphene flakes, flake-dimbin yawa nano-graphite foda, da kuma carbon nanotubes.Duk da haka, samfuran fina-finai masu zafi na graphite na halitta suna da kauri kuma suna da ƙarancin ƙarancin zafin jiki, wanda ke da wahala don saduwa da buƙatun zafin zafi na na'urori masu ƙarfi na gaba, haɗin kai-yawa.A lokaci guda, baya biyan manyan ayyuka na mutane don ultra-light da siriri, tsawon rayuwar batir.Don haka, yana da matuƙar mahimmanci don nemo sabbin kayan sarrafa zafin jiki.Wannan yana buƙatar irin waɗannan kayan don samun ƙarancin haɓakar yanayin zafi mai ƙarancin zafi, matsanancin zafin zafi, da haske.Kayayyakin carbon kamar lu'u-lu'u da graphene kawai sun cika buƙatun.Suna da high thermal conductivity.Abubuwan da ke tattare da su sune nau'in zafi mai zafi da kayan zafi mai zafi tare da babban aikace-aikacen aikace-aikacen, kuma sun zama abin da aka mayar da hankali.
Idan kuna son ƙarin sani game da nanodiamonds, da fatan za ku iya tuntuɓar ma'aikatanmu.
Lokacin aikawa: Mayu-10-2021