Silicon Carbide Ceramic Special -Ebitundu ebiringa .

 

Silicon carbide ceramic, ekintu ekituuka obulungi -ekintu ekituufu eky’okukola, kyewaanira ku density ey’enjawulo, obuziyiza okwambala, obutambuzi bw’ebbugumu, n’okuziyiza okukubwa kw’ebbugumu. Nga erina obuziyiza obw’amaanyi obw’okwokya, ekuuma amaanyi ag’okubeebalama aga waggulu ku bbugumu erya waggulu ate ng’eraga omulimu ogutebenkedde mu bbanga. Okuziyiza kwayo okw’enjawulo okw’okwambala, okuziyiza okukulukuta kw’eddagala, obukaluba obw’amaanyi, n’okunyweza ebyuma bifudde nnyo mu kukozesa mmotoka mu mmotoka empya ez’amaanyi, amafuta, okukuuma obutonde bw’ensi, ne yinginiya w’ebyuma. Tuwa ebintu ebikolebwa mu silicon carbide ceramic ebikoleddwa ku bubwe omuli okusiba empeta, entuuyo, disiki, ttanka, bases, n’emikono okusobola okutuukiriza ebyetaago eby’enjawulo eby’okukozesa.

 

 

 

 

Silicon Carbide Enzimba n'Eby'obugagga .

Silicon carbide (SIC), ekoleddwa silikoni ne kaboni, kirungo kya polymorphic okusinga ekiriwo mu ngeri bbiri: -sic (waggulu-enywevu mu bbugumu) ne -sic (wansi-enywevu mu bbugumu). Ebika ebisukka mu 200 biriwo, nga ebika ebikiikirira biri 3c-sic mu -sic ne 2h-sic, 4h-sic, 6h-sic, ne 15r-sic mu {{17}SIC. Wansi wa diguli 1600 , SiC eriwo nga -sic era esobola okusengekebwa okuva mu silikoni ennyangu-ebitabulwa bya kaboni okwetoloola diguli 1450 . Above 1600℃, -sic mpolampola efuuka -SIC polymorphs. 4h-sic ekola mangu ku 2000℃, ate 6h ne 15R polymorphs zeetaaga ebbugumu erisukka 2100℃okutuuka ku ffoomu. Ekikulu, 6h-sic esigala nga nnywevu nnyo okusukka 2200℃, ekifuula ekozesebwa nnyo mu makolero. Pure Sic alabika nga crystals ezitaliimu langi, ate amakolero-Grade SIC ayolesa langi okuva ku langi ezitaliimu langi okutuuka ku muddugavu, nga obwerufu bukendeera mpolampola. Mu brasives, SIC esengekebwa okusinziira ku langi mu bika ebiddugavu ne kiragala. SiC eya kiragala erimu enjawulo za kiragala ezitaliimu langi okutuuka ku langi enzirugavu, ate nga za bbululu-eza kiragala okutuuka ku muddugavu za sic omuddugavu. ByombiSIC eddugavu ne kiragala zibeera crystals ez’enjuyi omukaaga eza -sic, nga zirina green sic micro-obuwunga obukola ng’ekintu ekisookerwako ekisookerwako ku sic ceramics ezisinga obungi.

Enkola y'okuteekateeka obutonde bwa silicon carbide .

Silicon carbide (SIC) Ebintu bya keramiki bikolebwa okuyita mu nkola eno wammanga: Ebintu ebibisi ebya siC bikola okumenya, okusenya, n’okugabanya okufuna obutundutundu bwa sic obw’obunene obumu. Oluvannyuma obutundutundu buno butabulwamu ebirungo ebigattibwa mu sintering n’ebisiba eby’ekiseera okukola emibiri egya kiragala, oluvannyuma ne gisimbibwa ku bbugumu erya waggulu. Naye, olw’obutonde bwa covalent obw’amaanyi ennyo obwa si-C bonds (nga 88% covalent) n’omugerageranyo gwazo omutono ogw’okusaasaana, ekimu ku kusoomoozebwa okusookerwako mu kukola kwe kutuuka ku bunene bw’okusinda obumala. High-Density sic ceramics zisobola okutegekebwa nga tukozesa enkola ez’enjawulo omuli reaction sintering, pressureless sintering, atmospheric sintering, okunyiga okw’ebbugumu, recrystallization sintering, okunyiga isostatic mu bbugumu, n’okufulumya plasma sintering. Wadde kiri kityo, sic ceramics ziraga obugumu obutono obw’okumenya n’okuzirika okungi. Okusobola okukola ku kino, emyaka egiyise gibaddemu okuvaayo kwa ceramics ezikoleddwa nga zeesigamiziddwa ku SiC, gamba ng’ezo ezinywezebwa n’ebiwuzi (oba enviiri), zinywezebwa okuyita mu kusaasaana kw’obutundutundu obutali bumu, era ne zikulaakulanyizibwa ne zifuuka ebintu ebikola emirimu egy’enjawulo, byonna ne bitereeza ennyo obugumu n’amaanyi g’ebitundu ssekinnoomu.

Okukozesa n'okukulaakulanya Essuubi lya Silicon Carbide Ceramics .

Nga ekintu ekizimba eky’amaanyi ekya waggulu-ekikolebwa mu nkola ya silikoni, silicon carbide yeeyongedde okukozesebwa mu bintu eby’enjawulo omuli-ebyuma ebikuba ebbugumu, ebyuma eby’ekyuma, eby’amafuta, ebyuma n’ebyuma eby’amasannyalaze, eby’omu bwengula, amasannyalaze n’obutonde bw’ensi, amaanyi ga nukiriya, n’amakolero g’emmotoka. Olw’emiwendo gy’okuyingira mu mmotoka empya ez’amasannyalaze, amakolero, okukozesebwa mu makolero, n’empuliziganya, nga kwogasse n’ebyetaago ebikakali eby’amaanyi ku bitundu eby’amaanyi-ebituufu, okwambala-, n’ebitundu eby’ebyuma ebyesigika oba ebitundu eby’amasannyalaze mu makolero gonna, obunene bw’akatale ka silicon carbide bisuubirwa okugenda mu maaso n’okugaziya. Ekikulu, mmotoka empya ez’amaanyi n’okukozesebwa kw’amasannyalaze g’enjuba (photovoltaic applications) zisinga okulabika ng’ebitundu ebikulu ebikula mu kitongole kino.

Okulongoosa mu nkola ya silicon carbide ceramic irregularities ez’enjawulo .

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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