Mu kinyejana cya 21, hamwe niterambere ryubumenyi n’ikoranabuhanga, amakuru, ingufu, ibikoresho, ubwubatsi bw’ibinyabuzima byahindutse inkingi enye z’iterambere ry’imibereho y’iki gihe, karubide ya silicon bitewe n’imiterere ihamye y’imiti, imiyoboro y’amashyanyarazi menshi, coefficente yo kwagura amashyanyarazi ntoya, ubukana buke, kwihanganira kwambara, ubukana bwinshi, imbaraga za mashini, kurwanya imishwarara y’imiti, kwifashisha imipira ya cera, ibikoresho byinshi gyro, ibikoresho byo gupima, ikirere nizindi nzego.
Silicon carbide ceramics yatunganijwe kuva 1960. Mbere, karbide ya silicon yakoreshwaga cyane mubikoresho byo gusya no gusya. Ibihugu byo ku isi byita cyane ku nganda z’ubukorikori bugezweho, kandi ubu ntabwo byanyuzwe gusa n’itegurwa ry’ubukorikori gakondo bwa karubide ya silicon, umusaruro w’inganda z’ubukorikori buhanitse zitera imbere byihuse, cyane cyane mu bihugu byateye imbere. Mu myaka yashize, ibyiciro byinshi byubutaka bushingiye kubutaka bwa SIC byagaragaye nyuma yikindi, bitezimbere ubukana nimbaraga zibikoresho bya monomer. Silicon carbide ibice bine byingenzi byokoreshwa, ni ukuvuga ububumbyi bukora, ibikoresho bigezweho byo kuvunika, abrasives hamwe nibikoresho fatizo bya metallurgiki.
Silicon carbide ceramics ifite kwihanganira kwambara neza
Silicon carbide ceramics iki gicuruzwa cyizwe kandi cyaragenwe. Kurwanya kwambara kwa silicon karbide ceramics iki gicuruzwa gihwanye ninshuro 266 zicyuma cya manganese, bihwanye ninshuro 1741 za chromium nyinshi. Kurwanya kwambara nibyiza cyane. Irashobora kutuzigama amafaranga menshi. Silicon carbide ceramics irashobora gukoreshwa ubudahwema imyaka irenga icumi.
Silicon carbide ceramics ifite imbaraga nyinshi, ubukana bwinshi nuburemere bworoshye
Nubwoko bushya bwibikoresho, gukoresha ibikoresho bya silicon karbide ceramics iyi mbaraga yibicuruzwa ni byinshi cyane, gukomera cyane, uburemere nabwo biroroshye cyane, nkibikoresho bya silicon karbide ceramics mukoresha, gushiraho no gusimbuza ibyavuzwe haruguru bizoroha cyane.
Urukuta rw'imbere rwa silicon karbide ceramic iroroshye kandi ntirubuza ifu
Silicon carbide ceramics iki gicuruzwa cyirukanwa nyuma yubushyuhe bwo hejuru, bityo imiterere yubutaka bwa silicon carbide ceramics irasa cyane, hejuru iroroshye, ubwiza bwo gukoresha buzaba bwiza, bityo bukoreshwa mumuryango, ubwiza buzaba bwiza.
Igiciro cya silicon carbide ceramics ni gito
Igiciro cyo gukora silicon carbide ceramics ubwacyo ni gito, ntabwo rero dukeneye kugura igiciro cyibikoresho bya silicon carbide ceramics igiciro cyinshi cyane, kubwumuryango wacu, ariko kandi gishobora kuzigama amafaranga menshi.
Silicon carbide ceramic progaramu:
Silicon carbide ceramic ball
Silicon karbide ceramic ball ifite imiterere yubukanishi, irwanya okiside nziza cyane, irwanya abrasion nyinshi hamwe na coefficient de friction. Silicon carbide ceramic ball ball yubushyuhe bwo hejuru, ibikoresho bisanzwe bya ceramic kuri dogere 1200 ~ 1400 imbaraga za selisiyusi bizagabanuka cyane, kandi karbide ya silicon kuri dogere selisiyusi 1400 imbaraga ziracyakomeza kugumya kurwego rwo hejuru rwa 500 ~ 600MPa, kuburyo ubushyuhe bwakazi bwayo bushobora kugera kuri dogere selisiyusi 1600 ~ 1700.
Silicon karbide yibikoresho
Ibikoresho bya silicon karbide matrix (SiC-CMC) byakoreshejwe cyane mubijyanye n’ikirere kubera ubushyuhe bw’ubushyuhe bwo hejuru bitewe n'ubukomere bwinshi, imbaraga nyinshi hamwe no kurwanya okiside nziza. Gahunda yo gutegura SiC-CMC ikubiyemo fibre ikora fibre, kuvura ubushyuhe bwinshi, mesofase, gutwika matrix no kuvura nyuma. Imbaraga nyinshi za karuboni fibre ifite imbaraga nyinshi nubukomezi bwiza, kandi umubiri wateguwe wakozwe nawo ufite imiterere yubukanishi.
Mesophase coating (ni ukuvuga tekinoroji ya interineti) nubuhanga bwingenzi mugutegura, gutegura uburyo bwo gutwikira mesophase burimo imiti ya vapor osmose (CVI), kubitsa imyuka ya chimique (CVD), sol-sol uburyo (Sol-gcl), uburyo bwo gutobora polymer (PLP), uburyo bukwiye bwo gutegura uburyo bwa silicon carbide matrix.
Ibikoresho bitwikiriye hagati ya karubone ya pyrolytike, nitride ya boron na karbide ya boron, muri byo karbide ya boron nkubwoko bwa okiside irwanya okiside ihuza intera yitabiriwe cyane. SiC-CMC, ubusanzwe ikoreshwa mubihe bya okiside igihe kirekire, ikeneye kandi kuvurwa hakoreshejwe uburyo bwo kurwanya okiside, ni ukuvuga ko urwego rwa karbide ya silicon yuzuye ifite umubyimba wa 100μm rushyirwa hejuru yibicuruzwa na gahunda ya CVD kugirango irusheho guhangana n’ubushyuhe bwo hejuru bwa okiside.
Igihe cyo kohereza: Gashyantare-14-2023