Silicon carbide na silicon nitride nwere adịghị mma wettability na ọla a wụrụ awụ. E wezụga ịbụ infiltrated site magnesium, nickel, chromium alloy na igwe anaghị agba nchara, ha enweghị wettability na ndị ọzọ ọla, n'ihi ya, ha nwere magburu onwe corrosion iguzogide na-eji ọtụtụ ebe na aluminum electrolysis ụlọ ọrụ.
N'ime akwụkwọ a, a na-enyocha nguzogide corrosion nke silicon carbide R-SiC na silicon nitride bonded silicon carbide Si3N4-SiC na Al-Si alloy na-ekpo ọkụ na-agbaze site na ọtụtụ latitudes.
Dị ka nnwale data nke 9 ugboro nke thermal ịgba ígwè nke 1080h na 495 Celsius C ~ 620 Celsius C aluminum-silicon alloy gbazee, na-esonụ analysis results nwetara.
Ihe nlele R-SiC na Si3N4-SiC mụbara na oge nrụrụ na ọnụ ọgụgụ corrosion belatara. Ọnụego corrosion dabara na mmekọrịta logarithmic nke attenuation. (nọmba nke 1)
Site na nyocha ike dị iche iche, ihe nlele R-SiC na Si3N4-SiC n'onwe ha enweghị aluminom-silicon; na ụkpụrụ XRD, ụfọdụ ego nke aluminom-silicon elu bụ elu-ihe fọdụrụ aluminom-silicon alloy. (Foto nke 2 - foto 5)
Site na nyocha SEM, ka oge mmebi ahụ na-abawanye, usoro nhazi nke R-SiC na Si3N4-SiC dị nro, ma ọ dịghị mmebi doro anya. (Foto nke 6 - foto 7)
Esemokwu dị n'elu σs / l> σs / g nke interface n'etiti mmiri mmiri aluminom na seramiiki, akụkụ wetting θ n'etiti oghere dị> 90 Celsius, na interface n'etiti mmiri mmiri aluminom na mpempe akwụkwọ seramiiki adịghị mmiri.
Ya mere, ihe R-SiC na Si3N4-SiC dị mma na nguzogide corrosion megide aluminum silicon gbazee ma nwee obere ọdịiche. Agbanyeghị, ọnụ ahịa ihe Si3N4-SiC dị obere ma etinyere ya nke ọma kemgbe ọtụtụ afọ.
Oge nzipu: Dec-17-2018