graphitization ke eng?
Graphitization ke mokhoa oa indasteri oo carbon e fetoloang ho graphite. Ena ke phetoho ea microstructure e hlahang ka har'a carbon kapa litšepe tse tlaase tsa alloy tse pepesehileng mocheso oa 425 ho isa ho 550 degrees Celsius ka nako e telele, ho re lihora tse 1,000. Ena ke mofuta o mong oa boikhohomoso. Ka mohlala, microstructure ea carbon-molybdenum steels hangata e na le pearlite (motsoako oa ferrite le cementite). Ha thepa e entsoe ka graphit, e etsa hore pearlite e bole hore e be ferrite le graphite e qhalakantsoeng ka mokhoa o sa reroang. Sena se fella ka ho embrittlement ea tšepe le phokotso e itekanetseng ea matla ha likaroloana tsena tsa graphite li ajoa ka mokhoa o sa reroang ho pholletsa le matrix. Leha ho le joalo, re ka thibela graphitization ka ho sebelisa thepa e nang le khanyetso e phahameng e sa utloisiseng graphitization. Ho feta moo, re ka fetola tikoloho ka ho etsa mohlala, ho eketsa pH kapa ho fokotsa chloride. Tsela e 'ngoe ea ho thibela graphitization e kenyelletsa ho sebelisa seaparo. Tšireletso ea cathodic ea tšepe ea tšepe.
carbonization ke eng?
Carbonization ke mokhoa oa indasteri oo lintho tse phelang li fetoloang ho carbon. Lintho tse phelang tseo re li nahanang mona li akarelletsa litopo tsa limela le tsa liphoofolo. Tshebetso ena e etsahala ka distillation e senyang. Ena ke karabelo ea pyrolytic 'me e nkoa e le mokhoa o rarahaneng oo ho oona ho ka bonoang lik'hemik'hale tse ngata ka nako e le' ngoe. Ka mohlala, dehydrogenation, condensation, hydrogen transfer le isomerization. Mokhoa oa carbonization o fapane le mokhoa oa carbonization hobane carbonization ke ts'ebetso e potlakileng hobane e arabela litaelo tse ngata tsa boholo ka potlako. Ka kakaretso, palo ea mocheso o sebelisoang e ka laola tekanyo ea carbonization le palo ea lintho tse tsoang linaheng tse ling tse setseng. Ka mohlala, carbon content ea masalla e ka bang 90% ka boima ba 1200K le hoo e ka bang 99% ka boima ba hoo e ka bang 1600K. Ka kakaretso, carbonization ke exothermic reaction, e ka tloheloang ka boeona kapa ea sebelisoa e le mohloli oa matla ntle le ho etsa mohlala oa khase ea carbon dioxide. Leha ho le joalo, haeba biomaterial e pepesehetse liphetoho tsa tšohanyetso mocheso (joalo ka ho phatloha ha nyutlelie), biomaterial e tla carbonize kapele kamoo ho ka khonehang 'me e be carbon e tiileng.
Graphitization e tšoana le carbonization
Ka bobeli ke lits'ebetso tsa bohlokoa tsa indasteri tse kenyelletsang k'habone e le sehlahisoa kapa sehlahisoa.
Phapano ke efe lipakeng tsa graphitization le carbonization?
Graphitization le carbonization ke mekhoa e 'meli ea indasteri. Phapang e kholo pakeng tsa carbonization le graphitization ke hore carbonization e kenyelletsa ho fetola lintho tse phelang ho carbon, ha graphitization e kenyelletsa ho fetola carbon ho graphite. Ka hona, carbonization ke phetoho ea lik'hemik'hale, athe graphitization ke phetoho ea microstructure.
Nako ea poso: Sep-29-2021