Silicon carbide ceramic kintu kya ceramic nga kiriko silicon carbide (sic) nga ekitundu ekikulu, ekirimu amaanyi amangi, okuziyiza ebbugumu eringi n’okuziyiza okukulukuta, era kikozesebwa nnyo mu nnimiro z’amakolero.
Enkola y’okufulumya okusinga erimu okunyiga okw’ebbugumu, okusinda okutaliimu puleesa, okusiba ensengekera n’enkola endala, okuyita mu kufuga ebbugumu ly’okusinda (1450-2450℃) n’okugattako ebirungo ebigattibwamu (nga boron carbide, alumina) okutuuka ku densification .
Ennyonnyola y'ebintu .
Enkola ya reaction sintered silicon carbide ceramic products zirina ebintu bino wammanga eby’enjawulo:
Ebintu ebirungi ennyo eby’ebyuma: obukaluba obw’amaanyi ennyo (MOHS scale 9.0-9.5 okumpi n’eya dayimanda), ng’amaanyi ag’okubeebalama ga megapascals 400-600, era nga gakuuma amaanyi amangi ne ku bbugumu lya diguli 1600 .
Outstanding thermal properties: high thermal conductivity (120 - 220 w/m·k), omugerageranyo gw’okugaziwa kw’ebbugumu okutono (nga 4.0×10^{-6}/k), ogusobola okugumira ebbugumu erya waggulu okutuuka ku 1400 - 1600℃, n’okuziyiza okw’amaanyi eri okusika kw’ebbugumu (enjawulo y’ebbugumu esukka 800℃).
Obunywevu bw’eddagala obw’enjawulo: obugumira asidi ne alkali okukulukuta, okubeera n’obuziyiza obw’amaanyi obw’okwokya mu bitundu byonna ebitali -oxide ceramics, ebisaanira okukulukuta n’embeera eziri waggulu-ebbugumu.
Obuwangaazi n’okukola ebintu bingi: Obuwangaazi busukka emirundi 10 obw’ebintu ebya bulijjo ebya keramiki, era nga era birina eby’obugagga bya semikondokita (obutafaananako keramiki eza bulijjo eziziyiza), ekigifuula esaanira embeera y’okukola ennyo.
Silicon carbide ceramics, olw’obukaluba bwazo obw’amaanyi, okuziyiza ebbugumu eringi, okuziyiza okukulukuta, obutambuzi obw’ebbugumu obw’amaanyi n’okuziyiza okwambala obulungi, bikola kinene nnyo mu nnimiro ez’enjawulo ez’amakolero. Enkozesa enkulu ze zino wammanga .:
I. Ebbugumu erya waggulu n’amakolero g’ebyuma .
Ebikoomi eby’ebbugumu ebingi -Ebikoomi by’ekikoomi, ebikondo by’omuliro, ebitundu ebiwanirira ekikoomi, n’ebirala.
Ebikozesebwa ebiziyiza: ebikozesebwa mu kukola ebyuma ebikuba ebyuma (blast furnace linings), amatoffaali agaziyiza, n’ebipande ebiziyiza omuliro, okuziyiza okukulugguka kw’ebyuma ebisaanuuse n’okugaziwa ennyo ku bulamu bw’ebyuma.
Okusaanuusa ebyuma: Nga deoxidizers okutumbula obulongoofu bw’amazzi ag’ekyuma, oba okukolebwa mu mpeta ezikyusakyusa obutasalako, thermocouple protection tubes, okulongoosa obulungi bw’okusaanuusa.
2. Ennimiro y’okukola n’okuziyiza okwambala mu byuma .
Ebitundu ebisiba: Empeta ezisiba ebyuma ezikozesebwa mu ppampu z’eddagala ne ppampu z’amazzi, nga zirina obuziyiza okukulukuta emirundi amakumi g’ezo ez’ebyuma ebya bulijjo, ne zitereeza nnyo obulamu bw’okuweereza.
Ebikozesebwa n’ebikozesebwa mu kusala: ebiwanvu-ebivuga eby’amangu, ebigoma ebilungamya, n’ebikozesebwa mu kusala ebisiigiddwa, ebisaanira-ebbugumu n’embeera ya waggulu-okutikka, okukendeeza ku kwambala ebyuma.
Okwambala-Emidumu egiziyiza: Payipu z’okutambuza eby’okusima, ebikoola bya impeller, nga biziyiza kwambala emirundi 5-20 egy’ekyuma ekisuuliddwa.
3. Semiconductor ne Electronic Industry .
Ebikozesebwa mu kukola semikondokita: Disiki z’okusekula, ebinyweza okukola wafer, ebigumira ebbugumu eringi n’okukulukuta kw’eddagala, okukakasa obutuufu bw’okukola.
Ebbugumu okusaasaanya substrates: Ebbugumu okusaasaanya substrates for high-ebyuma amaanyi (nga IGBT, LED), nga thermal conductivity ya 270 W/m·K, okulongoosa obulungi bw’okusaasaanya ebbugumu.
Ebitundu by’amasannyalaze: ebikwaata ku mulabe, vvulovumenti-ebiziyiza ebiwulizi, n’ebirala, ebintu by’amasannyalaze ebikozesa engeri zaabyo ez’obutambuzi obutali bwa linnya.
4. Ekifo ekikuuma eddagala n’obutonde bw’ensi .
Okukulukuta-Ebyuma ebiziyiza: vvaalu, linings za riyakita, payipu, ezisobola okugumira asidi ow’amaanyi n’emisingi egy’amaanyi (nga 98% concentrated sulfuric acid).
Enkozesa y’obutonde: Ennyogovu-Ebisengejja omukka ogufuluma mu mukka (nga okwokya kasasiro), ebyuma ebisitula ebikuta by’omubisi gw’enjuki ebiyamba okusitula omukka mu mmotoka ezifulumya omukka mu mmotoka.
Ebitundu by’amasoboza: Ebiyungo by’obutoffaali bw’amafuta, ebyuma ebibugumya amaanyi g’enjuba, nga biziyiza ebbugumu erisukka mu 1000℃.
5. Ennimiro ez’enjawulo n’ezigenda okuvaayo .
Amakolero ga nukiriya: ebiyumba ebisiba amafuta ga nukiriya, ebibya ebisasiro, ebigumira okubunyisa amasannyalaze ga nyukiriya n’ebbugumu eringi.
Ebikozesebwa ebiziyiza amasasi: Ebintu ebikozesebwa mu kukola ebintu ebiziyiza amasasi ebikoleddwa mu ngeri ey’ekikugu (composite bulletproof ceramics) nga biyita mu kujjanjaba okukaluba, nga bikaluba nnyo ate nga bitono (3.10-3.15 g/cm3).
Photovoltaic Industry: Ebitundu by’okutambuza amazzi aga polysilicon etching, okugonjoola okwambala okw’amaanyi n’ebizibu eby’amaanyi eby’okukulukuta.
Silicon carbide ceramics zivuga obuyiiya bwa tekinologiya mu maanyi amapya (hydrogen fuel cells, photovoltaics), semiconductors, ne high-ebyuma ebikoma, era bye bikozesebwa ebisinga okwettanirwa mu mbeera ezisukkiridde nga ebbugumu eringi, okukulukuta, n’okwambala ennyo.
Okwolesebwa kw'ebintu .
Lwaki tulonda .
Ebintu ebikozesebwa amangu nga biriko ebintu ebikozesebwa mu kukola emirimu egy’omutindo ogwa waggulu nga biriko omutindo gwa waggulu
Lwaki londa ebintu byaffe .
1. 20 Emyaka egy'obumanyirivu mu kusuula ekyuma ekisuuliddwa, okukakasa omutindo, okutuusa mu budde
2. Ebikozesebwa mu kukola ebyuma ebituukiridde n’okukebera bisobola okukuwa butereevu ebitundu ebiwedde n’okutuukiriza ebisaanyizo by’okukebera bakasitoma .
3. Erina eddembe eryetongodde eriyingiza n’okufulumya ebintu era esobola okufulumya ebintu mu bitundu by’ensi byonna .
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