I-silicone carbide ceramicsziyizinto eziyinhloko ezinhlobonhlobo zezimboni ngenxa yezakhiwo zazo eziyingqayizivele, kufaka phakathi ubulukhuni obuphezulu, ukuminyana okuphansi kanye nokumelana nokushisa okuhle kakhulu. Lezi zakhiwo zenza i-silicon carbide (i-SiC) ibe yisinqumo esifanelekile sokusetshenziswa kwezobunjiniyela bemishini, izimboni zamakhemikhali nezensimbi, izikloni zezimboni kanye nemishini yokushisisa ehlukahlukene. Lesi sihloko sibheka ngokujulile izinhlelo zokusebenza eziningi ze-silicon carbide ceramics, ezigqamisa ukubaluleka kwazo ezinqubweni zesimanje zokukhiqiza nezimboni.
Emkhakheni wobunjiniyela bemishini, ama-silicon carbide ceramics aya ngokuya asetshenziswa ngenxa yokuqina kwawo okuhle kakhulu nokumelana nokugqoka. Lezi zinto zifaneleka ngokukhethekile ukukhiqiza izingxenye ezincane ze-insulating kanye nezingxenye zokugqoka ezidinga ukuqina nokuthembeka. I-Silicon carbide ingamelana namazinga okushisa aphezulu ngaphandle kokonakala noma ukulahlekelwa ubuqotho besakhiwo, iyenze ibe ilungele ukusetshenziswa emishinini esebenza kahle kakhulu. Njengoba imboni iqhubeka nokufuna izingxenye ezisebenza kahle nezihlala isikhathi eside, indima ye-silicon carbide ceramics kubunjiniyela bemishini kulindeleke ukuthi ikhule kakhulu.
Izimboni zamakhemikhali nezensimbi nazo zizuze kakhulu kuma-silicon carbide ceramics. Lezi zinto zikwazi ukumelana nokugqwala okuhle kakhulu, ikakhulukazi kunsimbi encibilikisiwe, i-slag kanye nezinsimbi ze-alkali. Lesi sakhiwo sibalulekile ezindaweni lapho izinto zendabuko zizohluleka khona, okuholela ekwehliseni isikhathi esibizayo nokulungiswa. Ngokuphawulekayo, ngaphezu kwe-65% yeziqhumiso ezinkulu emhlabeni wonke zisebenzisa i-silicon nitride-bonded silicon carbide materials njengezinto zomzimba zesithando somlilo. Lolu hlelo lokusebenza alugcini nje ngokunweba impilo yesevisi yeziqhumane ngo-20-40%, kodwa futhi luthuthukisa ukusebenza kahle. Ngaphezu kwalokho, izitsha ze-silicon carbide ceramics nazo zisetshenziswa njengezintambo zesithando somlilo kanye nezinsimbi zokuncibilikisa insimbi njenge-aluminium, ithusi kanye ne-zinc, okubonisa ukuguquguquka kwayo ekusetshenzisweni kokushisa okuphezulu.
Ezikhini zezimboni, ama-silicon carbide ceramics adlala indima ebalulekile ekwenzeni ukusebenza kahle nokusebenza kahle kwamandla. Ukusetshenziswa kwefenisha ye-silicon carbide kiln kunganciphisa kakhulu izidingo zesisindo nesikhala, okuzuzisa kakhulu izimboni ezifana nezimboni ezikhanyayo, izinto zokwakha kanye ne-electronics. Isisindo esilula sezingxenye ze-silicon carbide sisiza ukuthuthukisa ukusetshenziswa kwamandla ngoba kudingeka amandla amancane ukushisisa ihhashi. Ngaphezu kwalokho, ukumelana okuhle komthelela wezinto ze-silicon carbide kuvumela izinga lokushisa lokudubula ukuthi likhuphuke ngokushesha, kuthuthukise ukusebenza kahle kokusebenza kweziko.
I-silicon carbide ceramics nayo ibalulekile kumadivayisi ahlukahlukene okushisa asetshenziselwa ukucwilisa, ukuncibilika, kanye nezinto zokwelapha ukushisa. Ukushisisa okungaqondile ngegesi sekuphenduke indlela ekhethwayo kulezi zinqubo ngoba kuvumela ukusebenza kahle kokushisa okuthuthukisiwe kuyilapho kunciphisa ukukhishwa okuyingozi, njengama-nitrogen oxides (NOx). Ukusetshenziswa kwe-silicon carbide kulawa madivayisi okushisa akuthuthukisi ukusebenza kuphela kodwa futhi kuhambisana nemizamo yomhlaba wonke yokunciphisa umthelela wendawo. Njengoba izimboni zilwela ukuthola izixazululo ezivumelana nemvelo kakhudlwana, isidingo sezitsha zobumba ze-silicon carbide zokufaka ukushisa kungenzeka sikhule.
Ukuhlukahluka kwe-silicon carbide ceramics kudlulela ngalé kwezinhlelo zokusebenza zendabuko njengoba ziya ngokuya zisetshenziswa kubuchwepheshe obuphambili. Isibonelo, emkhakheni we-electronics, i-silicon carbide isetshenziswa ekukhiqizeni ama-semiconductors namadivayisi kagesi. I-thermal conductivity ephezulu kanye nezakhiwo zokufakwa kukagesi ze-silicon carbide ziyenza ilungele ukusetshenziswa kwe-electronic-frequency ephezulu kanye nezinga eliphezulu lokushisa. Njengoba isidingo sezinto ze-elekthronikhi ezisebenza kahle nezithembekile siqhubeka nokukhula, izitsha zobumba ze-silicon carbide kulindeleke ukuthi zibambe iqhaza elikhulu ekukhiqizeni i-elekthronikhi esikhathini esizayo.
Ukwengeza, izimboni ze-aerospace nezezimoto seziqala ukubona amandla e-silicon carbide ceramics yezingxenye ezingasindi, ezinamandla aphezulu. Ikhono le-silicon carbide lokumelana namazinga okushisa adlulele kanye nezindawo ezinokhahlo liyenza ibe inketho ekhangayo ezinhlelweni ezinjengama-turbine blades, ama-brake disc, nezinye izinto ezibalulekile. Njengoba lezi zimboni zifuna ukuthuthukisa ukusebenza kahle kukaphethiloli kanye nokunciphisa ukukhishwa kwegesi, ukufaka izitsha zobumba ze-silicon carbide emiklamo yazo kungathuthukisa kakhulu ukusebenza nokusimama.
Kafushane, ukusetshenziswa kwe-silicon carbide ceramics kubanzi, ngenxa yezakhiwo zabo ezihlukile kanye nezinzuzo zokusebenza. Ukusuka kobunjiniyela bemishini kuya ekucutshungulweni kwamakhemikhali, izishisi zezimboni kanye ne-elekthronikhi ethuthukisiwe, izinto zobumba ze-silicon carbide ziye zafakazela ukuthi ziyingxenye ebalulekile yokukhiqiza yesimanje. Njengoba ubuchwepheshe buqhubeka nokuthuthuka, amandla e-silicon carbide ceramics ukufaka isandla ezixazululweni ezintsha kanye nezinqubo ezizinzile azokhula kuphela. Ikusasa le-silicon carbide ceramics liyathembisa, futhi ucwaningo oluqhubekayo nentuthuko kuvula indlela yezinhlelo zokusebenza ezintsha nokusebenza okuthuthukisiwe emikhakheni ehlukahlukene.
Isikhathi sokuthumela: Mar-29-2025