Kedu ka obere nhazi (usoro kristal) nke petroleum coke graphitized dị?

I. Àgwà nke Ọdịdị Kristal

Nhazi Ala: Nhazi kristal nke coke mmanụ ala graphitized nwere netwọk planar nke atọm carbon hexagonal. A na-ejikọta netwọk planar ndị a n'otu akwa site na oyi akwa, na-emepụta nhazi nkịtị. Ike van der Waals na-adịghị ike jikọtara akwa ndị ahụ, nke na-enye graphite mmanụ na anisotropy.
Ihe Ndị Na-agbanwe Agbanwe: Mgbe a gbasasịrị eserese, ihe ndị na-agbanwe agbagwoju anya (a₀ na c₀) nke koke petroleum na-abịaru nso na nke graphite eke, na-egosi oke myirịta dị n'etiti ha na kristal. Ihe owuwu a na-eme ka koke petroleum graphitized nwee ike igosipụta ezigbo ike eletriki na okpomọkụ.
Paramita Microcrystalline: Site na iji mgbasa X-ray, enwere ike ịgbakọ paramita dịka oghere dị n'etiti oyi akwa (d₀₀₂), dayameta oyi akwa nkezi (Lₐ), na elu stacking (Lc) nke microcrystals dị na coke petroleum graphitized. Paramita ndị a na-egosipụta nha na nhazi nke microcrystals ma na-eje ozi dị ka ihe ngosi dị mkpa maka ịtụle ogo nke graphitization.

II. Mmetụta nke Usoro Nhazi Grafitization

Mgbanwe site na Amorphous gaa na Crystalline State: Tupu e mepụta graphitization, nhazi carbon nke petroleum coke bụ amorphous, nke a na-eji usoro ihe "ogologo oge na-adịghị mma, nke a haziri n'usoro dị mkpirikpi" mara. Site na ọgwụgwọ graphitization (a na-emekarị ya n'oge okpomọkụ dị elu site na 2500°C ruo 3000°C), amorphous carbon na-agbanwe nwayọọ nwayọọ ka ọ bụrụ usoro kristal graphite atọ nwere usoro.
Mmụba na Nha Microcrystallite: N'oge eserese, ọkpụrụkpụ nkezi (Lc) na obosara (Lₐ) nke flakes carbon lattice na-abawanye, ebe oghere dị n'etiti oyi akwa (d) na-ebelata. Nke a na-eme ka nha microcrystallite dịkwuo elu ma nwee nhazi kristal zuru oke.
Mbelata Nguzogide: Ka ọkwa nke nhazi graphitization na-abawanye, nguzogide nke coke petroleum graphitized na-ebelata nke ukwuu. Nke a bụ n'ihi na, n'oge nhazi graphitization, nhazi nke atọm carbon na-aghọ usoro karịa, na-enye ohere ka elektrọn na-agagharị nke ọma n'ime oghere oyi akwa, si otú a na-eme ka ike eletrik dịkwuo mma.

III. Mmekọrịta dị n'etiti obere nhazi na ihe onwunwe

Ọgbakọ eletriki: Ọdịdị kristal nke kọke mmanụ ala graphitized na-enye ohere ka elektrọn nwee ike ịkwaga n'enweghị nsogbu n'ime oghere oyi akwa ahụ, na-eme ka ọ bụrụ ezigbo njikwa eletriki. Ihe onwunwe a na-eme ka kọke mmanụ ala graphitized dị irè nke ukwuu n'ebe dịka ihe elektrọd na ihe mgbakwunye na-eduzi.
Ọgbakọ Okpomọkụ: N'ihi ike van der Waals na-ejikọ akwa ndị ahụ, enwere ike ibufe okpomọkụ ngwa ngwa n'ime akwa ndị ahụ. N'ihi ya, coke petroleum graphitized na-egosipụtakwa ezigbo ọgbakọ okpomọkụ, nke na-eme ka ọ dị mma maka imepụta ihe ndị na-ekpo ọkụ na ngwa ndị ọzọ.
Njirimara Mechanical: Nhazi kristal nke coke petroleum graphitized na-enye ya ike mechanical ụfọdụ. Agbanyeghị, ma e jiri ya tụnyere ihe ndị e ji ígwè mee, nhazi ya nke nwere akwa na-eme ka njikọ dị n'etiti oyi akwa ghara ịdị ike, na-eduga na ike mgbanwe na nrụgide dị ala. Njirimara arụmọrụ a na-enye coke petroleum graphitized uru ngwa n'ọnọdụ ebe ọ chọrọ iguzogide nrụgide ụfọdụ mana ọ chọghị ike dị elu.