Si3N4-SiC Zvidhinha

Ichi chigadzirwa chakatanga kuoneka mukupera kwema1960, uye chimiro chayo ndechekuti inoshandisa Si3N4 sebhainda. Si3N4 iripo pakati peSiC tsanga muchimiro chetsono-yakaita sono kana fibrous crystals, uye yakakosha mhando nyowani yezvinhu zvinoramba. Kazhinji ine 70% kusvika 75% silicon carbide uye 18% kusvika 25% silicon nitride. Iyo ine yakanaka corrosion resistance, 1400 ℃ flexural simba ye50 kusvika 55MPa, uye inooneka porosity ye15%. Thermal yekuwedzera coefficient (4.5 kusvika 5.0) × 10-2℃-1. Iyo inogadzirwa nepamusoro tembiricha sintering nzira. Inonyanya kushandiswa blast furnace tuyere uye aluminium electrolytic cell lining. Mumakore achangopfuura, kambani yedu yakaisa silicon nitride yakasungirirwa silicon carbide zvidhinha kumaindasitiri esilicon ore choto muromo uye silicon mvura bag, iyo inovandudza zvakanyanya hupenyu hwechoto uye hupenyu hwebasa resilicon mvura bag.