Carbide ya silicon reaction-ifite ibintu byiza bifatika

Kubera imiterere myiza yumubiri, karbide ya silicon ya reaction yakoreshejwe cyane nkibikoresho byingenzi bya shimi. Ingano yacyo ikoreshwa ifite ibintu bitatu: kubyara umusaruro; Ikoreshwa mukubyara ibikoresho byo gushyushya - silicon molybdenum inkoni, silicon karubone, nibindi.; Gukora ibicuruzwa bivunika. Nkibikoresho bidasanzwe byo kwangirika, bikoreshwa mugushonga ibyuma nicyuma nkitanura ryicyuma, igikombe nibindi gutunganya kashe, kwangirika, kwangiza umwanya ukomeye wibicuruzwa bitarinda umuriro; Mu byuma bidasanzwe (zinc, aluminium, umuringa) gushonga kugirango ushongeshe umuriro w'itanura, umuyoboro w'icyuma ushonga, ibikoresho byo kuyungurura, inkono ya clamp, nibindi.; Ikoranabuhanga ryo mu kirere nka kashe ya moteri umurizo nozzle, ubudahangarwa bwo hejuru bwa gazi gasanzwe ya turbine; Mu nganda za silikatike, benshi nkibikoresho bitandukanye byamazu yinganda, isanduku yubwoko bwo kurwanya itanura, saggar; Mu nganda zikora imiti, ikoreshwa nkibyara gaze, carburetor yamavuta ya peteroli, itanura rya gaz flulfisation nibindi.

Gukoresha neza ibicuruzwa bikora α-SiC, kubera imbaraga zabyo nini cyane, biragoye cyane kuyisya mu ifu ya nanoscale ultrafined, kandi ibice ni amasahani cyangwa fibre, bikoreshwa mu gusya muri compact, ndetse no mubushuhe kugeza kubora. ubushyuhe hirya no hino, ntibuzana umusaruro ugaragara cyane, ntibushobora gucumura, urwego rwo kugabanya ibicuruzwa ni ruto, kandi kurwanya okiside ni bibi. Kubwibyo, mubikorwa byinganda zikora ibicuruzwa, umubare muto wibintu bya spherical powder-SiC ifu ya ultrafine yongewe kuri α-SiC no guhitamo inyongeramusaruro kugirango ubone ibicuruzwa byinshi. Nkiyongera muguhuza ibicuruzwa, ukurikije ubwoko burashobora kugabanywa mubice bya okiside yicyuma, ibice bya azote, grafite nziza cyane, nkibumba, oxyde ya aluminium, zircon, zirconium corundum, ifu yindimu, ikirahure cyanduye, nitride ya silicon, silicon oxynitride, hejuru grafite isuku nibindi. Igisubizo cyamazi yo gufatira hamwe gishobora kuba kimwe cyangwa byinshi bya hydroxymethylcellulose, emulion ya acrylic, lignocellulose, tapioca krahisi, umuti wa aluminium oxyde, igisubizo cya silicon dioxyde colloidal, nibindi ukurikije ubwoko bwinyongeramusaruro no gutandukanya ingano yinyongera, ubushyuhe bwo kurasa bwa compact ntabwo ari bumwe, kandi ubushyuhe ni 1400 ~ 2300 ℃. Kurugero, α-SiC70% hamwe nubunini bwagabanijwe burenga 44 mm, β-SiC20% hamwe nubunini bwagabanijwe butarenze 10 mm, ibumba 10%, hiyongereyeho 4.5% lignocellulosic igisubizo 8%, kivanze, cyakozwe na 50MPa ikora umuvuduko, urasa mu kirere kuri 1400 ℃ kuri 4h, Ubucucike bugaragara bwibicuruzwa ni 2.53g / cm3, ububobere bugaragara ni 12.3%, kandi imbaraga zingana ni 30-33mpa. Imiterere yo gucumura yubwoko butandukanye bwibicuruzwa hamwe ninyongeramusaruro zitandukanye ziri kurutonde rwa 2.

Muri rusange, inganda za silicon karbide zikora zifite imiterere ihanitse muburyo bwose, nkimbaraga zikomeye zo gukomeretsa, guhangana nubushyuhe bukabije bwumuriro, kwihanganira kwambara neza, imbaraga zumuriro zikomeye hamwe no kurwanya ruswa ikabije kurwego rwubushyuhe bwinshi. Icyakora, hakwiye kandi kugaragara ko ibibi byayo ari uko ingaruka za antioxydeant ari mbi, itera kwaguka kwinshi no guhindura imiterere yubushyuhe bwo hejuru kugirango ubuzima bwa serivisi bugabanuke. Kugirango tumenye neza ko okiside irwanya reaction ya sisitike ya karubide ya karubide, ibikorwa byinshi byo gutoranya byakozwe murwego rwo guhuza. Gukoresha ibumba (ririmo okiside yicyuma) guhuza, ariko ntabwo byatanze ingaruka ya buffer, uduce duto twa karubide ya silicon turacyafite umwuka mubi hamwe na ruswa.