I-graphite ehlakaniphile ivame ukusetshenziswa ekukhiqizweni kwezinto zensimbi kanye nezinto zokwenziwa ze-semiconductor. Ukuze wenze izinto zensimbi nezindwangu ze-semiconductor zifinyelele ekuhlanzeni okuthile futhi zinciphise inani lokungcola, i-graphite powder ngokuqukethwe okuphezulu kwekhabhoni nokungcola okuphansi kuyadingeka. Ngalesi sikhathi, kuyadingeka ukususa ukungcola kusuka ku-graphite powder ngesikhathi sokulungiswa. Amakhasimende amaningi awazi ukuthi angabhekana kanjani nokungcola ngofulawa we-graphite. Namuhla, umhleli wegrafu we-furuite uzokhuluma ngamathiphu wokususa ukungcola ngofulawa we-graphite ngokuningiliziwe:
Lapho sikhiqiza i-graphite powder, kufanele silawule ngokuqinile okuqukethwe ukungcola kusuka ekukhetheni izinto zokwakha, khetha izinto ezingavuthiwe ngokuqukethwe okuphansi komlotha, futhi kuvikele ukwanda kokungcola kwenqubo yokucubungula i-graphite powder. I-oxides yezinto eziningi zokungcola zibolile futhi ihanjiswa ngokushisa okuphezulu, ngaleyo ndlela iqinisekise ubumsulwa bempuphu ye-graphite ekhiqizwayo.
Lapho ukhiqiza imikhiqizo ejwayelekile egqamile, izinga lokushisa eliyisisekelo lomkatha lifinyelela cishe ama-2300 ℃ kanti okuqukethwe okulimazayo okusele cishe ngo-0,1% -0.3%. Uma izinga lokushisa lomlilo likhuphukelwe ku-2500-3000 ℃, okuqukethwe ukungcola okuseleyo kuzoncishiswa kakhulu. Lapho ukhiqiza imikhiqizo ye-graphite ye-graphite, i-petroleum coke enokuqukethwe okuphansi komlotha kuvame ukusetshenziswa njengezinto zokumelana nezinto zokufakelwa.
Noma ngabe amazinga okushisa we-graphization angenyuke afinyelela ku-2800 ℃, okunye ukungcola kusenzima ukususa. Ezinye izinkampani zisebenzisa izindlela ezifana nokuncipha komthwalo wemthandweni nokwandisa ubuningi bamanje ukukhipha i-graphite powder, okunciphisa umphumela wokukhipha i-graphite powder isithando futhi kwandise ukusetshenziswa kwamandla. Ngakho-ke, lapho amazinga okushisa we-graphite powder isithando afinyelela ku-1800 ℃, igesi ehlanziwe, njenge-chlorine, i-freeon namanye ama-chlorides nama-fluorides, futhi ayaqhubeka ukungezwa amahora amaningi ngemuva kokwehluleka kwamandla ngemuva kokwehluleka kwamandla. Lokhu ukuvikela ukungcola okuvinjelwe ukuthi kube hlukana nesithando esikuqonde ngakolunye uhlangothi, futhi kuxoshe igesi esele ehlanziwe kusuka kuma-pores we-graphite powder ngokuthula ama-nitrogen athile.
Isikhathi sePosi: Jan-06-2023