Me yasa akwai babban bambanci a aiki alhali kuwa duk sun fito ne daga petroleum coke? Menene ainihin sihirin "graphitization" a 3000℃ ya canza?

Graphitization, ta hanyar maganin zafin jiki mai yawa a 3000℃, yana canza ƙwayoyin carbon a cikin petroleum coke daga tsarin da ba shi da tsari zuwa tsarin graphite mai tsari sosai, yana haɓaka kwararar wutar lantarki, kwararar zafi, rage juriyar wutar lantarki da abun ciki na toka, yayin da kuma inganta halayen injiniya da kwanciyar hankali na sinadarai. Wannan yana haifar da babban bambanci a aiki tsakanin coke na petroleum mai graphitized da coke na petroleum na yau da kullun. Cikakken bincike shine kamar haka:

1. Sake Tsarin Tsarin Ƙananan Gine-gine: Daga Rashin Tsari zuwa Tsarin

Kokin Man Fetur na yau da kullun: An samar da shi ta hanyar jinkirin yin coking na ragowar man fetur, ana shirya ƙwayoyin carbon ɗinsa cikin tsari mara kyau, tare da lahani da ƙazanta da yawa, suna samar da tsari kamar "tarin yadudduka marasa tsari." Wannan tsari yana hana ƙaurawar electrons kuma yana rage ingancin canja wurin zafi, yayin da ƙazanta (kamar sulfur da toka) ke ƙara tsoma baki ga aiki.
Coke na Man Fetur Mai Zane-zane: Bayan an yi maganin zafin jiki mai yawa a 3000℃, ƙwayoyin carbon suna yaɗuwa da sake tsara su ta hanyar kunna zafi, suna samar da tsari mai layi kamar graphite. A cikin wannan tsari, ana shirya ƙwayoyin carbon a cikin grid mai siffar hexagonal, tare da yadudduka da ƙarfin van der Waals suka haɗa tare, suna ƙirƙirar lu'ulu'u mai tsari sosai. Wannan canji yana kama da "tsara takardu da aka warwatse zuwa littattafai masu kyau," yana ba da damar canja wurin lantarki da zafi mafi inganci.

2. Manyan hanyoyin Inganta Aiki

Tsarin Watsa Wutar Lantarki: Juriyar wutar lantarki ta coke mai siffar graphitized yana raguwa sosai, kuma watsawar sa ta zarce ta coke mai siffar pol. Wannan saboda tsarin da aka tsara mai layi yana rage watsawar electron, yana bawa electrons damar motsawa cikin 'yanci. Misali, a cikin kayan lantarki na batir, coke mai siffar graphitized na iya samar da fitowar wutar lantarki mai karko.
Tsarin Gudanar da Zafi: Tsarin ƙwayoyin carbon da aka tsara sosai a cikin tsarin da aka tsara yana sauƙaƙa saurin canja wurin zafi ta hanyar girgizar lattice. Wannan siffa ta sa coke ɗin petroleum mai hoto ya zama mai kyau don amfani a cikin kayan watsa zafi, kamar na'urorin dumama zafi na kayan lantarki.
Halayen Inji: Tsarin lu'ulu'u na coke mai siffar graphitized yana ba shi ƙarfi da juriya ga lalacewa, yayin da yake riƙe da wani matakin sassauci, wanda hakan ke sa shi ya zama ƙasa da saurin karyewa.
Daidaiton Sinadarai: Maganin zafin jiki mai yawa yana kawar da yawancin ƙazanta (kamar sulfur da toka), yana rage adadin wuraren da ke aiki don halayen sinadarai kuma yana sa coke mai siffar petroleum ya fi karko a cikin muhallin da ke lalata iska.

3. Zaɓin Yanayin Aikace-aikace daban-daban

Man Fetur na yau da kullun: Saboda ƙarancin farashi, ana amfani da shi a fannoni da ba su da tsauraran buƙatun aiki, kamar mai, kayan gini a kan hanya, ko kuma a matsayin kayan aiki don maganin graphitization.
Coke ɗin Man Fetur Mai Zane-zane: Saboda ingantaccen watsa wutar lantarki, watsa wutar lantarki, da kuma daidaiton sinadarai, ana amfani da shi sosai a fannoni masu ƙarfi:

• Batir Electrodes: A matsayin kayan lantarki mara kyau, yana ƙara ingancin caji da fitarwa da kuma tsawon lokacin zagayowar batura.
• Masana'antar Ƙarfe: A matsayin na'urar sarrafa ƙarfe, tana daidaita yawan sinadarin carbon da ke cikin ƙarfen da aka narke kuma tana inganta halayen ƙarfe.
• Masana'antar Semiconductor: Ana amfani da shi don samar da samfuran graphite masu tsabta, wanda ke biyan buƙatun injinan daidai.
• Tashar Jiragen Sama: Yana aiki a matsayin kayan kariya daga zafi, yana jure yanayin zafi mai tsanani.

4. Muhimman Ayyukan Tsarin Zane-zane

Kula da Zafin Jiki: 3000℃ shine maƙasudin zafin jiki mai mahimmanci don graphitization. A ƙasa da wannan zafin, ƙwayoyin carbon ba za su iya sake tsara su gaba ɗaya ba, wanda ke haifar da rashin isasshen matakin graphitization; sama da wannan zafin, yawan tono kayan na iya faruwa, wanda ke shafar aiki.
Kariyar Yanayi: Yawanci ana gudanar da wannan tsari a cikin yanayi mara motsi, kamar argon ko nitrogen, don hana ƙwayoyin carbon amsawa da iskar oxygen don samar da carbon dioxide, wanda zai haifar da asarar abu.
Lokaci da Ƙarfafawa: Tsawaita lokacin riƙewa ko ƙara abubuwan ƙarfafawa (kamar boron ko titanium) na iya hanzarta tsarin graphitization, amma yana ƙara farashi.