Siab qib khoom silicon carbide

Carbon \/Silicon CarbideYog hom tshiab ntawm kev ua haujlwm zoo ceramic-raws li kev sib txhuam cov khoom uas tau tsim nyob rau xyoo tas los no. Nws muaj cov txiaj ntsig zoo nrog rau ntom ntom ntom tsawg, oxidation tsis kam, siab los ua kev sib cav, thiab kev ua tau ruaj khov. Nws muaj qhov dav ua daim ntawv thov cov zeem muag hauv kev ua haujlwm siab xws li tsheb ciav hlau ceev, dav hlau, thiab cov tsheb hnyav. Cov txheej txheem melt Infiltration yog ib txoj hauv kev zoo los npaj cov pa roj carbon \/ silicon carbide txhuam sib xyaw.

1.Nanometallic Nickel tau uniformed dispersed rau hauv polycarbosilane, thiabSilicon CarbideFibers muaj cov npib tsib xee tau npaj los ntawm melt kiv, tsis yog yaj kev kho, thiab sintering. Nws tau pom tias doping nrog nano Nickel nce cov lus kub me me ntawm polycarbosilane thiab ua rau muaj kev nce hauv lub cheeb ntawm cov kab mob spun. Silicon carbide fibers tau thaum tswj cov txheej txheem kev kho hnyav nce nyob nruab nrab ntawm 9% thiab 11% ua kom zoo tshaj plaws cov khoom siv zoo tshaj plaws. Qhov zoo tshaj plaws sintering kub rau npib tsib xee-muaj silicon carbide fibers yog 1250 degree. Thawj hom ntawm npib tsib xee nyob hauv cov ceramic fibers yog npib tsib xee-silicon intermetallic compound. Cov kev qhia ntawm Nano Nickel txhawb nqa kev loj hlob ntawm -sic nplej thaum Sintering cov txheej txheem.

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