Ku-crystallography, isakhiwo sedayimane sibizwa nangokuthi isakhiwo sedayimane cubic crystal, esakhiwa isibopho esiseduze kwama-athomu e-carbon. Izakhiwo eziningi ezedlulele zedayimane zingumphumela oqondile wamandla ebhondi e-SP³ abumbanayo eyakha isakhiwo esiqinile nenani elincane lama-athomu ekhabhoni. Insimbi yensimbi iphatha ukushisa ngama-elektroni amahhala, futhi nokusebenza kwayo okuphezulu okuhlotshaniswa nokusebenza okuphezulu kagesi. Ngokuphambene, ukushiswa kokushisa edayimane kufezwa kuphela ngama-lattice vibrations (ie, pumpon). Izibopho eziqinile kakhulu ezinamandla phakathi kwama-athomu e-diamond zenza i-Crystal lattice inemvamisa ephezulu yokudlidliza, ngakho-ke izinga lokushisa lemibhalo yalo liphezulu liphakeme ngo-2,220 K.

 

Njengoba izicelo eziningi ziphansi kakhulu kunesinga lokushisa debye, ukusakazeka kwe-phonon kuncane, ngakho-ke ukumelana nokushisa okushisa nge-phonon njengoba kuphakathi kakhulu. Kepha noma yisiphi isimo se-lattice sizokhiqiza ukusakazwa kwe-phonon, ngaleyo ndlela sinciphise ukusebenza okushisayo, okuyisici esingokwemvelo sazo zonke izinto ze-crystal. Ukulimazeka edayimane kuvame ukufaka ama-Isotopes aphezulu anjenge-Isotopes esindayo, ukungcola kwe-nitrogen kanye nezikhala zomsebenzi, izinkinga ezengeziwe ezinjengokufaka amaphutha kanye nemingcele yokusanhlamvu.

 

I-Diamond Crystal inesakhiwo esijwayelekile se-tetrahedral, lapho wonke ama-4 ama-athomu we-carbon angakha ama-combared bond, ngakho-ke awekho ama-elektroni wamahhala, ngakho-ke ama-diamond awakwazi ukwenza ugesi.

 

Ngaphezu kwalokho, ama-athomu e-carbon edayimane axhumene nezibopho ezine-nane. Ngoba isibopho se-CC edayimane siqine kakhulu, yonke i-elektroni ye-valence ibamba iqhaza ekwakhekeni kwama-combared Bonds, kwakha isakhiwo se-crystal-ady ekhenge ipiramidi, ngakho-ke ubulukhuni bedayimane buphezulu kakhulu futhi iphuzu lokuncibilika liphezulu. Futhi lesi sakhiwo sedayimane futhi senza singezelele ama-band ambalwa kakhulu, iningi lesibani elixhumeke kwidayimane liboniswa, ngakho-ke yize kunzima kakhulu, kubukeka kunzima kakhulu.

 

Njengamanje, izinto ezithandwa kakhulu zokuhlanza ukushisa zingamalungu omndeni we-nano-carbon, kufaka phakathinanodiamond, i-nano-graphene, i-graphene flokes, i-flake emise ama-nano-graphite powder, kanye ne-carbon nanotubes. Kodwa-ke, imikhiqizo yefilimu ye-Graphite yokushisa yokushisa yokushisa ikhudlwana futhi ine-arvivity ephansi eshisayo, okunzima ukufeza izidingo zokuncipha kokushisa kwamandla aphezulu aphezulu, amadivayisi ahlanganisiwe aphezulu. Ngasikhathi sinye, akuhlangabezani nezidingo zokusebenza kwabantu eziphezulu ze-Ultra-light futhi mncane, impilo ende yebhethri. Ngakho-ke, kubaluleke kakhulu ukuthola izinto ezintsha ze-super-thermal ezisebenzayo. Lokhu kudinga izinto ezinjalo zibe nezinga eliphansi kakhulu lokunwebeka, ukuthuthuka okushisayo okuphezulu, nokukhanya. Izinto zekhabhoni ezinjengedayimane ne-graphene zihlangabezana nezidingo. Banokuphakelayo okuphezulu okushisayo. Izinto zabo ezihlanganisiwe ziwuhlobo lokushisa nokushisa kwezinto zokwehla kokushisa ngekhono elikhulu lesicelo, futhi sebephenduke ukunakwa.

 

Uma ungathanda ukwazi okwengeziwe ngama-nanodiamonds ethu, zizwe ngomusa ukuxhumana nabasebenzi bethu.

 


Isikhathi sePosi: Meyi-10-2021

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