Cov txheej txheem xaiv ntawm cov duab graphite tsuas yog suav nrog cov hauv qab no:
Xim thiab gloss: ntshiab ntuj ntuj graphite yog feem ntau dub-grey thiab muaj ib tug metallic luster.
Kov: ntuj ci graphite zoo li du, zoo ib yam li kov ntawm silk.
Hardness: ntuj graphite muaj lub siab tawv thiab tsis yooj yim puas. Nws yuav ua lub suab kaw thaum khob.
Ntsej zog: Zoo ntuj graphite muaj ib txwm ntom thiab yuav tsis hnov lub teeb thiab fluttering.
Purity thiab particle loj: tus nqi ntawm ntuj graphite yog ze ze rau nws txoj kev coj dawb huv thiab qhov loj me. Qhov ntau dua cov ntsiab lus carbon thiab cov hmoov tshauv tsawg dua, tus nqi siab dua tus nqi ntawm ntuj graphite. Qhov loj dua qhov loj me me, qhov siab dua tus nqi.
Chaw thov cov chaw thov thiab cov yam ntxwv ntawm ntuj graphite:
Kev kub siab kuj: lub ntsiab lus melting ntawm ntuj graphite yog siab li 3850 ± yog 3850 ± yog 3850 ± ua rau lub sijhawm npau npau yog 4250 degree. Txawm tias nyob rau hauv ultra-kub kub arc hlawv, qhov hnyav no yog tsawg heev thiab cov cua sov nthuav tawm coefficient kuj tseem me heev.
Hluav Taws Xob thiab Kev Ua Haujlwm Hluav Taws Xob: Hluav Taws Xob Hluav Taws Xob Zoo Tshaj Li Cov Khoom Uas Tsis Muaj Ib Txhuas Ntau Tshaj Li Ntawm Cov Khoom Hlau xws li Hlau, Hlau, thiab Lead.
Lubricity: Lubricity ntawm graphite nyob ntawm qhov loj me ntawm cov teev. Cov nplai loj dua cov teev, cov me me txhuam coefficient thiab qhov zoo dua lubricity.
Tshuaj lom neeg ruaj khov: ntuj graphite muaj cov tshuaj muaj peev xwm ntawm chav sov ntawm chav tsev kub thiab tiv taus cov kua qaub, alkali, thiab organic kuab corrosion.
Yas huv thiab cua sov tsis kam: thaum siv nyob rau hauv chav tsev kub, ntuj graphite tuaj yeem tiv thaiv kev hloov pauv kub tsis muaj kev puas tsuaj. Thaum qhov kub hloov dheev, lub ntim ntawm graphite tsis hloov ntau thiab tsis muaj kev tawg.