Ukuphikiswa kokugqwala kwe-R-SIC ne-SI3N4-SIC in Aluminium-Silicon Alloy Melt

I-Silicon Carbide ne-Silicon Nitride banokuphazamiseka okumpofu ngensimbi encibilikisiwe. Ngaphandle kokungenelwa yi-magnesium, i-nickel, i-chromium alloy kanye nensimbi engenacala, abanawo amangazi kwezinye izinsimbi, ngakho-ke banokumelana okuhle kakhulu kwe-electrorlysion embonini.

Kuleli phepha, ukumelana nokugqwala kwe-silicon Carbide R-Sic kanye ne-Silicon Nitride Bond Silicon Carbide si3n4-Sic ekuhambeni okushisayo kwe-Al-Si Alloy Melts kuphenywe ngezindawo eziningi zokuphakanyiswa.

Ngokwemininingwane yokuhlolwa kwezikhathi eziyi-9 zokuhamba ngebhayisikile ka-1080h ngo-495 ° C ~ 620 ° C Aluminium-Silicon Alloy Melst, kwatholakala imiphumela yokuhlaziywa.

Amasampula we-R-Sic kanye ne-SI3N4-Sic akhuphuke nge-Corrolusion Time kanye nezinga lokukhulisa lehlile. Izinga lokukhulisa elihambisana nobudlelwano be-logarithmic ye-attenuation. (Umdwebo 1)

Ngokuhlaziywa kwamandla e-Energy Spectrum, i-R-SIC kanye ne-SI3N4-SIC amasampula ngokwawo ayinawo aluminium-salicon; Kuphethini le-XRD, inani elithile le-aluminium-silicon Peak yi-Aluminium-Silicon Alloy eyisabelo esasele engaphezulu. (Umdwebo 2 - Umdwebo 5)

Ngokuhlaziywa kwe-sem, njengoba isikhathi sokugqwala sikhuphuka, ukwakheka okuphelele kwe-R-Sic kanye namasampula we-SI2N4-Sic akhululekile, kepha akukho monakalo osobala. (Umdwebo 6 - Umdwebo 7)

Ukuxineka komhlaba sss / l> sscer / g of interface phakathi koketshezi lwe-aluminium kanye ne-ceramic, i-angle emanzi, kanye nokuxhumana phakathi kwe-aluminium iwuketshezi.

Ngakho-ke, izinto ze-R-Sic ne-SI2N4-Sic zihle kakhulu ekumelaneni nokugqwala ngokumelene ne-aluminium silicon kuncibilike futhi kube nomehluko omncane. Kodwa-ke, izindleko ze-SI2N4-soic izinto ziphansi futhi zisetshenziswe ngempumelelo iminyaka eminingi.