Silicone graphite ke thepa e kopantsoeng eo silicon carbide e khomaretsoeng ka holim'a karoloana ea graphite. E na le litšoaneleho tsa boima bo phahameng, matla a phahameng a mochine le ho hanyetsa ha silicon carbide, hammoho le thepa ea ho itlotsa le ho hanyetsa mocheso oa graphite. Ke thepa e loketseng ea likhohlano le thepa e tiisang mochini, e loketseng ho tiisa lipompo tse fapaneng tsa metsi, lipompo tsa oli, lipompo tsa lik'hemik'hale, le li-bearings tsa lipompo tse fapaneng tse lebelo le tse phahameng haholo. Ntle le moo, graphite e entsoeng ka siliconized e na le khanyetso e ntle ea oxidation, ho hanyetsa mocheso oa mocheso, porosity e tlase, le conductivity e itseng ea motlakase, 'me e ka sebelisoa e le lisebelisoa tse kang litšepe tse qhibilihisang tšepe le li-tubes tse ntseng li sebelisoa.
Sebopeho sa siliconegraphite e tšoana, bokaholimo bo lumellana le bokahare, 'me karo-karolelano ea silicon carbide le graphite e ka fetoha. Ha litaba tsa silicon carbide li phahame, ho ba le letsoalo le leholo la thepa, matla a khatello a phahama, 'me resistivity e eketseha.
Setšoantšo sa metallographic sa siliconegraphite
(karolo e ntšo ke graphite, karolo e bohlooho ke silicon carbide, 'me karolo e tšoeu ke silicon)
硅化石墨主要技术指标 | |
类别 Ntho | 指标 Boleng |
密度 Botenya | 2.4-2.9g/cm³ |
孔隙率 Porosity | <0.5% |
抗压强度Matla a hatellang | > 400MPa |
抗折强度 Matla a flexural Matla a flexural | > 120MPa |
热导率 Thermal conductivity | 120W/mK |
热膨胀系数Coefficient ea ho eketsa mocheso | 4.5×10-6 |
弹性模量Modulase oa elastic | 120GPa |
冲击强度Matla a amang | 1.9KJ/m² |
水润滑摩擦系数 Metsi a lubricated friction | 0.005 |
干摩擦系数Coefficient e omileng ea likhohlano | 0.05 |
化学稳定性 Ho tsitsa ha lik'hemik'hale | 各种盐,有机溶剂,强酸(HF,HCl,H₂SO4,HNO₃) Matsoai a fapa-fapaneng, li-solvents, li-acid tse matla (HF,HCl,H₂SO4,HNO₃) |
长期稳定使用温度 Mocheso oa tšebeliso ea nako e telele o tsitsitseng | 800℃(氧化气氛), 2300℃(惰性或真空气氛) 800 ℃ (sepakapaka se oxidizing), 2300 ℃ (sepakapaka sa inert kapa vacuum) |
电阻率 Restivity ea motlakase | 120×10-6Ωm |