Ibisobanuro rusange bya Reaction Bonded SiC

Rusangeibisobanuro byaIgisubizoSiC ifite imigabane

Reaction Bonded SiC ifite imiterere ya mekanike kandi irwanya ogisijeni. Ikiguzi cyayo ni gito. Muri iki gihe, yakuruye abantu benshi mu nganda zitandukanye.

SiC ni umugozi ukomeye cyane wa covalent. Mu gusya, igipimo cyo gusya kiba gito cyane. Muri icyo gihe, ubuso bw'uduce duto bukunze gutwikira urwego rworoshye rwa okiside rugira uruhare mu gusya. SiC y'umwimerere ntabwo isya cyane kandi ntigira inyongera zisya. Nubwo hakoreshwa uburyo bwo gusya, igomba no guhitamo inyongera zikwiye. Mu bushyuhe bwinshi cyane, niho ibikoresho bikwiye ubucucike bw'ubuhanga hafi y'ubucucike bw'imitekerereze bishobora kuboneka, bikaba bigomba kuba biri hagati ya 1950 ℃ na 2200 ℃. Muri icyo gihe, imiterere n'ingano yabyo bizaba bike. Nubwo SIC composites zishobora kuboneka hakoreshejwe umwuka, zigarukira gusa mu gutegura ibikoresho bifite ubucucike buke cyangwa ibikoresho bifite ubucucike buke. Kubera ko zimara igihe kirekire zituje, ikiguzi cyo gukora kiziyongera.

Reaction Bonded SiC yavumbuwe mu myaka ya 1950 na Popper. Ihame ry'ibanze ni iri:

Mu gihe cy’imbaraga z’imiyoboro y’amaraso, silikoni y’amazi cyangwa aloyine ya silikoni ifite imikorere yo gukora reactive yinjiye mu byuma bitonyanga birimo karuboni maze ikora silikoni ya karuboni muri reaction. Karuboni ya silikoni nshya ifatanye n’uduce twa silikoni ya mbere turi aho, kandi utundi duce dusigaye mu cyuma cyuzuza twuzuramo ikintu gitera gutera impyiko kugira ngo inzira yo gukurura irangire.

Ugereranyije n'izindi nzira za silicon carbide ceramics, inzira yo gutwika ifite ibi bikurikira:

Ubushyuhe buke bwo gutunganya, igihe gito cyo gutunganya, nta gikenewe cy'ibikoresho byihariye cyangwa bihenze;

Ibice bifatanye nta gucika cyangwa ngo bihinduke ingano;

Uburyo butandukanye bwo gushushanya (gusohora, gutera, gukanda no gusuka).

Hari uburyo bwinshi bwo gushushanya. Mu gihe cyo gusya, ibicuruzwa binini kandi bigoye bishobora gukorwa nta gukandamizwa. Ikoranabuhanga rya silicon carbide ryakozwe na Reaction Bonded ryamaze imyaka mirongo itanu ryigwa. Iri koranabuhanga ryabaye rimwe mu matsinda atandukanye yibandwaho bitewe n'ibyiza byaryo bidasanzwe.