Ho lokisa 5% ho 10% (karolo ea boima) Al2O3 karolong ea matrix ea sebōpi sa carbon / graphite litene (li-carbon blocks) li ntlafatsa haholo ho hanyetsa ha kutu ea tšepe e qhibilihisitsoeng 'me ke tšebeliso ea litene tsa aluminium tsa carbon ka mekhoa ea ho etsa tšepe.Taba ea bobeli, litene tsa k'habone tsa aluminium li boetse li sebelisoa litsing tse entsoeng ka tšepe e qhibilihisitsoeng le likotlolong tsa pompo.
Litene tsa khabone tsa aluminium bakeng sa pretreatment ea tšepe e qhibilihisitsoeng
Litene tsa aluminium silicon carbide li sebelisoa haholo lisebelisoa tsa ho tsamaisa tšepe e qhibilihisitsoeng joalo ka litanka tsa tšepe tse qhibilihisitsoeng.Leha ho le joalo, ha mofuta ona oa thepa ea refractory o sebelisoa ka litanka tse kholo tse entsoeng ka tšepe e qhibilihisitsoeng le metsoako ea tšepe, 'me o kopana le maemo a matla a ho futhumatsa le a pholileng, a atisa ho ba le mapetsong, a lebisang ho ebola ha sebopeho.Ho phaella moo, hobane litene tsa Al2O3-SiC-C tse sebelisoang ka litanka tse kholo tsa tšepe tse chesang le metsoako ea tšepe hangata li na le carbon content ea 15% le conductivity ea mocheso e phahameng ho 17 ~ 21W / (m·K) (800 ℃), moo. ke phokotso Thempereichara ea tšepe e qhibilihisitsoeng le bothata ba ho holofatsa maqephe a tšepe a litanka tse kholo tse entsoeng ka tšepe le likoloi tse tsoakang.The countermeasure ke ho finyella conductivity e tlaase ea mocheso ka ho tlosa SiC, e leng karolo e sebetsang haholo ea thermally, ha e ntse e fokotsa dikahare tsa graphite le ho hloekisa graphite.
Ka lipatlisiso tsa motheo, ho fihleloa ka hore:
(1) Ha dikahare tsa graphite (karolo ea boima) ka litene tsa carbon tsa aluminium li ka tlaase ho 10%, sebopeho sa eona sa mokhatlo se na le Al2O3 e etsang matrix e tsoelang pele, 'me carbon e tletse matrix ka mokhoa oa lintlha tsa linaleli.Ka nako ena, conductivity ea mocheso λ ea setene sa khabone ea aluminium e ka baloa ka mokhoa o itseng (1)
Ka foromo, λa ke conductivity ea mocheso ea Al2O3;Vc ke karolo ea molumo oa graphite.Sena se bontša hore mocheso oa mocheso oa litene tsa aluminium tsa carbon ha o amane letho le mocheso oa mocheso oa graphite.
(2) Ha graphite e hloekisoa, mocheso oa mocheso oa setene sa carbon aluminium ha o itšetlehe ka likaroloana tsa graphite.
(3) Bakeng sa litene tsa carbon aluminium-carbon e tlaase, ha graphite e hloekisoa, ho ka thehoa matrix a bonding e teteaneng, e ka ntlafatsang ho hanyetsa ha kutu ea litene tsa aluminium-carbon.
Sena se bontša hore litene tse tlaase tsa carbon A aluminium carbon li ka ikamahanya le maemo a ts'ebetso ea litanka tse kholo tsa tšepe tse chesang le likoloi tse kopanyang tšepe tsamaisong ea tšepe.
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Nako ea poso: Feb-27-2024
