Silicon carbide uye silicon nitride haina kunyorova nesimbi yakanyungudutswa. Kunze kwekupinzwa ne magnesium, nickel, chromium alloy uye simbi isina tsvina, haina kunyorova kune dzimwe simbi, saka ine yakanakisa corrosion resistance uye inoshandiswa zvakanyanya muindasitiri yealuminium electrolysis.
Mune bepa rino, iyo corrosion resistance yeyakagadziridzwa silicon carbide R-SiC uye silicon nitride yakasungirirwa silicon carbide Si3N4-SiC mukupisa-inotenderera Al-Si alloy melts yakaongororwa kubva kune akawanda latitude.
Zvinoenderana nekuyedza data ye9 nguva yekupisa bhasikoro ye1080h mu495 ° C ~ 620 ° C aruminiyamu-silicon alloy melt, zvinotevera ongororo mhedzisiro yakawanikwa.
Iyo R-SiC uye Si3N4-SiC samples yakawedzera nenguva yekuora uye chiyero chekuora chakaderera. Iyo corrosion rate inowirirana nelogarithmic hukama hwekudzikisira. (mufananidzo 1)
Nekuongororwa kwesimba remagetsi, iyo R-SiC uye Si3N4-SiC samples ivo pachavo havana aluminium-silicon; mune XRD pateni, imwe chiyero chealuminium-silicon peak ndiyo yepamusoro-inosara aruminiyamu-silicon alloy. (Mufananidzo 2 – Mufananidzo 5)
Kuburikidza neSEM kuongororwa, sezvo nguva yekuora inowedzera, iyo yakazara chimiro cheR-SiC uye Si3N4-SiC samples yakasununguka, asi hapana kukuvara kuri pachena. (Mufananidzo 6-Mufananidzo 7)
The surface tension σs/l>σs/g of the interface pakati pealuminum liquid neceramic, the wetting angle θ pakati peinterfaces is>90°, uye chibatano pakati pealuminium liquid nesheet ceramic material haina kunyorova.
Naizvozvo, iyo R-SiC uye Si3N4-SiC zvinhu zvakanakisa mukupokana nekupokana nealuminium silicon inonyungudika uye ine musiyano mudiki. Nekudaro, mutengo weSi3N4-SiC zvinhu wakaderera uye wakashandiswa zvinobudirira kwemakore mazhinji.
Nguva yekutumira: Dec-17-2018