N'ihi ezigbo ihe onwunwe ya, a na-eji silicon carbide eme ihe nke ọma dị ka ihe dị mkpa maka kemịkalụ. Oke ojiji ya nwere akụkụ atọ: maka mmepụta nke ihe ndị na-eme ka ihe ghara ịdị ọcha; A na-eji ya emepụta ihe ndị na-ekpo ọkụ na-eguzogide - mkpanaka silicon molybdenum, tube silicon carbon, wdg.; Maka imepụta ngwaahịa ndị na-eme ka ihe ghara ịdị ọcha. Dịka ihe pụrụ iche na-eme ka ihe ghara ịdị ọcha, a na-eji ya eme ihe na ígwè na ígwè dị ka ọkụ ọkụ ígwè, cupola na nhazi stamping ndị ọzọ, ire ere, mmebi na ọnọdụ siri ike nke ngwaahịa ndị na-anaghị agba ọkụ; N'ime ihe ndị na-eme ka ihe ghara ịdị ọcha nke ígwè dị ụkọ (zinc, aluminom, ọla kọpa) maka chajị ọkụ na-agbaze, ọkpọkọ ihe eji ebu ihe ígwè, ngwaọrụ nzacha, ite mkpọchi, wdg.; Na teknụzụ mbara igwe dị ka ihe na-eme ka ihe ghara ịdị nkọ, agụba turbine gas eke na-aga n'ihu na-adịgide adịgide; N'ime ụlọ ọrụ silicate, ọtụtụ dị ka ọtụtụ ụlọ ọrụ mmepụta ihe, chajị ọkụ igbe, saggar; N'ime ụlọ ọrụ kemịkalụ, a na-eji ya eme ihe dị ka mmepụta gas, carburetor mmanụ dị nro, ọkụ flue gas desulfurization na ndị ọzọ.
Ojiji dị ọcha nke ngwaahịa mmepụta α-SiC, n'ihi ike ya dị ukwuu, ọ na-esiri ike ịkpụ ya ka ọ bụrụ ntụ ntụ nanoscale ultrafined, ihe ndị ahụ bụkwa efere ma ọ bụ eriri, nke e ji gwerie ya na obere, ọbụlagodi na okpomọkụ ya ruo na okpomọkụ ire ere gburugburu, agaghị emepụta mpịachi doro anya, enweghị ike ịgbaze, ọkwa njupụta nke ngwaahịa dị ala, iguzogide oxidation adịghịkwa mma. Ya mere, na mmepụta ụlọ ọrụ mmepụta ngwaahịa, a na-agbakwunye obere obere ntụ ntụ β-SiC ultrafine gburugburu na α-SiC na nhọrọ nke ihe mgbakwunye iji nweta ngwaahịa dị elu. Dịka ihe mgbakwunye maka njikọta ngwaahịa, dịka ụdị si dị, enwere ike kewaa ya na metal oxides, nitrogen compounds, high purified graphite, dị ka ụrọ, aluminum oxide, zircon, zirconium corundum, lime powder, laminated glass, silicon nitride, silicon oxynitride, high purified graphite na ndị ọzọ. Mmiri mmiri nke ihe na-eme ka ihe na-eme ka ihe dị n'ime ya nwere ike ịbụ otu ma ọ bụ karịa nke hydroxymethylcellulose, acrylic emulsion, lignocellulose, tapioca starch, aluminum oxide colloidal solution, silicon dioxide colloidal solution, wdg. Dịka ụdị ihe mgbakwunye na ọdịiche dị na ọnụọgụ mgbakwunye si dị, okpomọkụ ọkụ nke obere ihe ahụ abụghị otu, oke okpomọkụ dịkwa 1400 ~ 2300℃. Dịka ọmụmaatụ, α-SiC70% nwere nkesa nha nha nke karịrị 44μm, β-SiC20% nwere nkesa nha nha nke na-erughị 10μm, ụrọ 10%, gbakwunyere 4.5% lignocellulosic solution 8%, agwakọtara nke ọma, nke e ji nrụgide ọrụ 50MPa mepụta, nke a na-agba n'ikuku na 1400℃ maka awa 4. Njupụta nke ngwaahịa ahụ bụ 2.53g/cm3, porosity doro anya bụ 12.3%, ike nrụgide ahụ bụkwa 30-33mpa. E depụtara ihe ndị e ji agwakọta ihe dị iche iche nke ọtụtụ ụdị ngwaahịa nwere ihe mgbakwunye dị iche iche na Tebụl 2.
N'ozuzu, ihe ndị na-eme ka silicon carbide sie ike nwere àgwà dị elu n'akụkụ niile, dịka ike nrụgide siri ike, ike iguzogide okpomọkụ siri ike, ezigbo ike iguzogide okpomọkụ, ike iguzogide okpomọkụ siri ike na ike iguzogide nchara ihe mgbaze n'ọtụtụ okpomọkụ. Agbanyeghị, a kwesịkwara ịhụ na ihe ọghọm ya bụ na mmetụta antioxidant adịghị mma, nke na-akpata mmụba olu na mgbanwe na gburugburu okpomọkụ dị elu iji belata ndụ ọrụ. Iji hụ na iguzogide oxidation nke ihe ndị na-eme ka silicon carbide sie ike, emeela ọtụtụ ọrụ nhọrọ na oyi akwa njikọ. Ngwakọta ụrọ (nwere ihe ndị na-eme ka ígwè oxides) sie ike, mana enyeghị mmetụta nchekwa, ihe ndị na-eme ka silicon carbide dị na ya ka nwere ike ibute oxidation na corrosion.
Oge ozi: Juun-21-2023