I-siliconized graphite yinto edibeneyo apho i-silicon carbide ifakwe kumphezulu we-graphite substrate.Ineempawu zobunzima obuphezulu, amandla omatshini aphezulu kunye nokumelana nokunxiba kwe-silicon carbide, kunye neempawu zokuzithambisa kunye nokumelana nobushushu begraphite.Yimathiriyeli efanelekileyo yokukhuhlana kunye nezixhobo zokutywinwa ngoomatshini, ezifanelekileyo ukutywinwa koomatshini beempompo zamanzi ezahlukeneyo, iimpompo zeoyile, iimpompo zekhemikhali, kunye neebheringi zeempompo eziphambili ezinesantya esiphezulu kunye nomthwalo ophezulu.Ukongeza, i-siliconized graphite inokumelana ne-oxidation elungileyo, ukuxhathisa ukothuka kwe-thermal, i-porosity ephantsi, kunye nokuhanjiswa kombane okuthile, kwaye inokusetyenziswa njengezinto ezinjengeentsimbi zokunyibilikisa iityhubhu kunye neetyhubhu eziyidrafti.
Ukuqulunqwa kwe-siliconizedigraphite iyunifomu, umphezulu uyahambelana nengaphakathi, kwaye umlinganiselo wokwakheka kwesilicon carbide kunye negraphite iyahlengahlengiswa.Okukhona uphezulu umxholo we-silicon carbide, kokukhona ubuninzi bezinto eziphathekayo, amandla oxinzelelo aphezulu, kunye nokumelana nokunyuka.
Umfanekiso we-metallographic wesiliconizedigraphite
(inxalenye emnyama yigraphite, inxalenye engwevu yisilicon carbide, kwaye inxalenye emhlophe yisilicon)
硅化石墨主要技术指标 | |
类别 Into | ILogo Simahla Akukho mlinganiselo Ipapashwe ngu-指标 Ixabiso |
密度 Ukuxinana | 2.4-2.9g/cm³ |
孔隙率 I-Porosity | <0.5% |
抗压强度Amandla acinezelayo | > 400MPa |
抗折强度 Amandla e-Flexural Amandla e-Flexural | > 120MPa |
热导率 I-Thermal conductivity | 120W/mK |
热膨胀系数I-coefficient yokwandisa i-Thermal | 4.5×10-6 |
弹性模量Imodyuli ye-elastic | 120GPa |
冲击强度Amandla empembelelo | 1.9KJ/m² |
水润滑摩擦系数 Ukukhuhlana kwamanzi okuthambisa | 0.005 |
干摩擦系数I-coefficient yokhuhlane eyomileyo | 0.05 |
化学稳定性 Uzinzo lwekhemikhali | 各种盐,有机溶剂,强酸(HF,HCl,H₂SO4,HNO₃) Iityuwa ezahlukeneyo, izinyibilikisi eziphilayo, iiasidi ezinamandla (HF,HCl,H₂SO4,HNO₃) |
长期稳定使用温度 Ubushushu bokusetyenziswa kwexesha elide | 800℃(氧化气氛), 2300℃(惰性或真空气氛) I-800 ℃ (i-oxidizing atmosphere), 2300 ℃ (inert okanye ivacuum umoya) |
电阻率 Ukumelana nombane | 120×10-6Ωm |