IiPropati zeGraphite-Thermal Conductivity

Igraphite yinto ekhethekileyo kunye neyodwa eneempawu ezimangalisayo ze-thermal conductivity.I-thermal conductivity ye-graphite iyanda ngokunyuka kweqondo lokushisa, kunye ne-thermal conductivity yayo inokufikelela kwi-1500-2000 W / (mK) kwiqondo lokushisa, elimalunga namaxesha amahlanu. yobhedu kunye namaxesha angaphezu kwe-10 e-aluminiyam yesinyithi.

I-Thermal conductivity ibhekisela kwikhono lezinto zokuqhuba ubushushu.Kujongwa ukuba ubushushu buhamba ngokukhawuleza kangakanani na kwinto.I-graphite, ifom yendalo yekhabhoni, ineyona nto iphezulu yokuqhuba i-thermal phakathi kwazo zonke izinto ezaziwayo.Ibonisa i-thermal conductivity ekhethekileyo kwicala elixhomekeke kumaleko ayo, iyenza ibe yinto efanelekileyo kwizicelo ezininzi.

Ulwakhiwo lwegraphiteiqulathe umaleko weeathom zekhabhoni ezicwangciswe kwilathisi enehexagonal.Kumaleko ngamnye, iiathom zekhabhoni zibanjwa kunye ngamabhondi aqinileyo.Nangona kunjalo, amaqhina phakathi kwamaleya, aziwa ngokuba yiVan der Waals forces, abuthathaka.Lulungiselelo lweeathom zekhabhoni phakathi kwala maleko okunika igraphite iimpawu zayo ezikhethekileyo zokuqhuba ubushushu.

I-conductivity ye-thermal ye-graphite ngokuyinhloko ngenxa yomxholo wekhabhoni ephezulu kunye nesakhiwo se-crystal esiyingqayizivele.Iibhondi zekhabhoni zekhabhoni ngaphakathi kwinqanaba ngalinye zivumela ukushisa ukuba kudluliselwe ngokulula kwiplani yoluhlu.Ukusuka kwi-chemical formular yegraphite, sinokuqonda ukuba i-inter-layer forces ebuthathaka yenza kube lula ukuba iiphonon (amandla okunyakaza) ahambe ngokukhawuleza. ngelathisi.

I-high conductivity ye-thermal ye-graphite ibangele ukusetyenziswa kwayo ngokubanzi kumashishini ahlukeneyo.

Mna:Ukwenza i-electrode yegraphite.

Igraphite yenye yezinto eziphambili zeukuvelisa i-electrode yegraphite, enenzuzo ye-conductivity ephezulu ye-thermal, ukumelana nokushisa okuphezulu, ukuzinza kweekhemikhali okulungileyo, amandla aphezulu omatshini, ngoko ke isetyenziswa ngokubanzi kwi-metallurgy, imboni yeekhemikhali, amandla ombane kunye namanye amashishini kwinkqubo yesithando somlilo se-electrolytic kunye nombane.

II:Igraphite isetyenziswa kwinkalo ye-electronics.

I-graphite isetyenziswe njengento yokutshisa ukushisa ukutshatyalaliswa kobushushu obuveliswa zizixhobo zombane ezifana ne-transistors, iisekethe ezidibeneyo, kunye neemodyuli zamandla.Ikhono layo lokudlulisa ukushisa ngokufanelekileyo kude nalezi zixhobo kunceda ukugcina uzinzo kunye nokuthintela ukushisa.

III:igraphite isetyenziswa ekwenzeniiminqamlezokunye nokubumba kwesinyithi.

I-conductivity yayo ephezulu ye-thermal ivumela ukuhanjiswa kobushushu ngokufanelekileyo, ukuqinisekisa ukufudumeza okufanayo kunye nokupholisa isinyithi.Oku, kwakhona, kuphucula umgangatho kunye nokuhambelana kwemveliso yokugqibela.

IV:I-Graphite thermal conductivity isetyenziswa kwishishini le-aerospace.

Imixube yegraphite isetyenziswa ekwakhiweni kwezixhobo zenqwelomoya kunye neziphekepheke.Iipropati ezikhethekileyo zokudlulisa ubushushu begraphite zinceda ekulawuleni amaqondo obushushu agqithisileyo afunyenwe ngexesha lemishini yasemkhathini kunye neenqwelomoya ezihamba ngesantya esiphezulu.

V: IGraphite isetyenziswa njengesithambiso kumashishini ahlukeneyo.

Isetyenziswa ngokuqhelekileyo kwiinkqubo zokuvelisa apho ubushushu obuphezulu kunye noxinzelelo lubandakanyekayo, njengeenjini zeemoto kunye noomatshini besinyithi.Isakhono segraphite ukumelana namaqondo obushushu aphezulu ngelixa unciphisa ukukhuhlana kwenza ukuba ibe sisithambisi esifanelekileyo kwezo zicelo.

VI:Graphite isetyenziswa kuphando lwezenzululwazi.

Isetyenziswa ngokuqhelekileyo njengento eqhelekileyo yokulinganisa i-thermal conductivity yezinye izinto.Amaxabiso e-thermal conductivity asekelwe kakuhle egraphite asebenza njengendawo yokubhekisela ekuthelekiseni nasekuphononongeni iimpawu zokutshintshwa kobushushu bezinto ezahlukeneyo.

Ukuqukumbela, i-graphite thermal conductivity iyingqayizivele ngenxa yesakhiwo sayo esiyingqayizivele sekristale kunye nomxholo ophezulu wekhabhoni.Ukukwazi ukuhambisa ubushushu ngokufanelekileyo kwenze ukuba kube yimfuneko kumashishini ahlukeneyo, kubandakanya i-electronics, i-metal casting, i-aerospace, kunye nokuthambisa.Ngapha koko, igraphite isebenza njengesixhobo sokulinganisa ubushushu bezinye izinto.Ngokuqonda kunye nokusebenzisa okungaqhelekangaiimpawu zegraphite, sinokuqhubeka nokuhlola izicelo ezintsha kunye nokuqhubela phambili kwintsimi yokutshintshwa kobushushu kunye nolawulo lwe-thermal.