Igishushanyo ni iki?
Igishushanyo ni inzira yinganda karubone ihinduka grafite. Izi nimpinduka za microstructure ziboneka muri karubone cyangwa ibyuma bito bito byerekanwa nubushyuhe bwa dogere selisiyusi 425 kugeza kuri 550 mugihe kirekire, vuga amasaha 1.000. Ubu ni ubwoko bwa embrittlement. Kurugero, microstructure ya carbone-molybdenum ibyuma akenshi iba irimo pearlite (imvange ya ferrite na cementite). Iyo ibikoresho bishushanyije, bitera pearlite kubora muri ferrite kandi itatanye kuri grafite. Ibi bivamo gushiramo ibyuma no kugabanuka kwingufu zoroheje mugihe ibyo bice bya grafite bigabanijwe kuri matrike. Ariko, turashobora gukumira igishushanyo dukoresheje ibikoresho bifite imbaraga zo kutarwanya cyane gushushanya. Mubyongeyeho, turashobora guhindura ibidukikije nkurugero, kongera pH cyangwa kugabanya chloride. Ubundi buryo bwo gukumira igishushanyo kirimo gukoresha igifuniko. Kurinda Catodiki kurinda ibyuma.
Carbonisation ni iki?
Carbonisation ni inzira yinganda aho ibinyabuzima bihinduka karubone. Ibinyabuzima turimo gusuzuma hano birimo imirambo yibimera ninyamaswa. Iyi nzira ibaho no gusenya. Iyi ni reaction ya pyrolytique kandi ifatwa nkigikorwa kitoroshye aho imiti myinshi icyarimwe ishobora kugaragara. Kurugero, dehydrogenation, kondegene, hydrogène yoherejwe na isomerisation. Inzira ya karubone itandukanye na karubone kuko karubone ni inzira yihuse kuko ikora ibintu byinshi byubunini byihuse. Muri rusange, ingano yubushyuhe ikoreshwa irashobora kugenzura urugero rwa karubone nubunini bwibintu byamahanga bisigaye. Kurugero, karubone yibisigara ni 90% kuburemere kuri 1200K naho hafi 99% kuburemere kuri 1600K. Muri rusange, karuboni ni reaction ya exothermic reaction, ishobora gusigara yonyine cyangwa igakoreshwa nkisoko yingufu idashizeho ibimenyetso bya gaze karuboni. Ariko, niba biomaterial ihuye nimpinduka zitunguranye zubushyuhe (nko mubiturika bya kirimbuzi), biomaterial izahindura karubone vuba bishoboka kandi ihinduka karubone ikomeye.
Graphitisation isa na karubone
Byombi nibikorwa byingenzi byinganda zirimo karubone nkigisubizo cyangwa ibicuruzwa.
Ni irihe tandukaniro riri hagati yo gushushanya na karubone?
Igishushanyo na karubone ni inzira ebyiri zinganda. Itandukaniro nyamukuru hagati ya karubone nogushushanya ni uko karubone ikubiyemo guhindura ibintu kama karubone, mugihe gushushanya birimo guhindura karubone kuri grafite. Kubwibyo, karubone ni impinduka yimiti, mugihe igishushanyo mbonera ni microstructure ihinduka.
Igihe cyo kohereza: Nzeri-29-2021