Kuki ibikoresho bya Graphite bikozwe muri SiC bigena umusaruro uhoraho?

Mu miterere y’ikorwa rya kristu ya SiC, abahanga benshi bibanda ku miterere y’ahantu hashyushye, imiyoboro igenzura ubushyuhe, n’ikoreshwa ry’ifu. Nyamara iyo habayeho ihindagurika ry’umusaruro, impamvu nyamukuru ikunze gusubira inyuma ku gice kimwe—ikiyiko. Ntigitanga urumuri, ntikizunguruka, kandi ntikigaragara nk'"igipimo cy'ingenzi" mu bishushanyo. Ariko iyo urwego ruvuye hejuru, kristu igakora ahantu hatari ho, cyangwa karubone nyinshi cyane ikava mu mfuruka, inenge ziva muri boule yose zigaragaza ikintu kimwe: iki gice ntabwo ari uruhare runini rwo gushyigikira.

Kugaragara kwaIbikoresho bya grafiti bitwikiriwe na SiCMu itanura rya semiconductor crystal growth rifite ibisobanuro byoroshye: ubushyuhe, ikirere, n'ubukana bw'ubwikorezi bw'ibikoresho mu gace k'iterambere biri gutera imipaka y'imikorere y'ibikoresho. Graphite ni nziza cyane mu bijyanye no kwihanganira ubushyuhe, ubushobozi bwo gukora, no kohereza ubushyuhe—ariko iza ifite imiterere yayo: guhinduka, ubushobozi bwo kwinjira mu kirere, Uburyo bwo gukora imiti hakoreshejwe ubwoko bw'umwuka cyangwa imyanda, hamwe n'ingaruka zitarindwa zo gukurura ifu no gukora uduce duto. Igishishwa cya SiC gikora nk'uruzitiro rukomeye rwo kurwanya ububabare.

Kuki hakoreshwa SiC Coating ku byuma bikoresha grafiti?

Impamvu eshatu z'ingenzi:

1. Kugabanya ihindagurika rya karuboni no kongera imbaraga mu mikorere yaryo

Graphite itangira gukurura ku bushyuhe bwinshi, ndetse no mu gihe cy’imyuka idakora neza. Karuboni irekurwa ihindura imiterere y’umwuka mu gihe cy’ikura rya PVT, ikabangamira uburyo ibintu bihindukamo kandi igatuma habaho inenge cyangwa imiterere idahindagurika mu mikurire.

2. Kugabanya inkomoko z'ubwandu

Ndetse na grafiti ifite isuku nyinshi ishyirwa ku ruhande ifite imyenge mito kandi ikunda kwinjirira ubwoko bw'ibinyabuzima nk'ibitera umwuka, ibikomoka ku bimera, cyangwa ubushuhe. Ibi bishobora kurekurwa nyuma mu gihe cy'ubushyuhe bwinshi, bigahungabanya ubuziranenge bwa kristu. Igitambaro cya SiC gifunga imyenge kandi kikanoza isuku y'ibidukikije.

3. Kongera igihe cyo kubaho no gukumira kwangirika kw'ibimera

Nyuma yo gukoresha grafiti inshuro nyinshi, ubuso bwa grafiti bushobora kwangirika: ifu, gushishwa, gucika uduce duto, no kumanika ibikoresho. Ibi bituma uduce duto twanduzwa n'uduce duto kandi umusaruro ukaba muke. Irangi rikomeye rya SiC rishobora gutinza cyane uburyo nk'ubwo bwo kwangirika, rigakomeza ubuziranenge n'ubwizerwe.

Igenzura ry'imikorere yo gusiga rigena uburyo bwo kwizera mu buryo bw'ibirungo

Uburyo busanzwe bwo gusiga irangi ni CVD(Kubika umwuka muke) bya SiC ya polycrystalline. Ikuze kandi ihorana ubushyuhe. Ariko, kugira irangi ntibihagije—itandukaniro nyaryo mu mikorere y’umurima riterwa n’ibice bito nka:

● Ubunini bw'igitambaro bungana

Imiterere y’imiterere y’ibice igoye cyane—intambwe, imiyoboro, uduce duto—irema ahantu hapfutse cyangwa hato cyane aho ubugari bw’igitambaro bushobora kugabanuka munsi y’urugero rwagenwe. Utu duce duto tuba ari two twa mbere twangiritse bitewe n’ubushyuhe.

Igisubizo:Umucuruzi w’ibirahure agomba kugira uburyo bwo kugenzura neza imiterere y’amazi mu buryo bwa 3D hamwe na sisitemu yo kuzenguruka ihindagurika kugira ngo arebe ko hari ubwinshi bungana ndetse no ku bice bigoye.

● Ubucucike bw'igitambaro no gukuraho umwobo w'impini

Iyo ibipimo bya CVD (ubushyuhe, ingano ya gaze, igihe cyo gutura) bidagenzuwe neza, utwobo duto cyane dushobora kuvuka. Ibi biba ahantu ho gutangira kwangirika uko karuboni isohoka ndetse no kwangirika kw'aho hantu.

Gutahura:Ubunini bw'ibanze n'igenzura ry'amaso ntibihagije. Koresha ibizamini byo gusohora helium cyangwa ibizamini byo kugabanya ibiro bisigaye mu ngendo nyinshi z'ubushyuhe kugira ngo umenye imyenge ihishe.

● Ingufu zo gufata no kwirinda ubushyuhe

SiC na grafiti bifite coefficients zitandukanye zo kwaguka k'ubushyuhe. Iyo stress isigaye mu gipfundikizo idagabanutse, cyangwa corrugation/pre-treatment idahagije, delamination ishobora kubaho mu gihe cy'ubushyuhe.

Uburyo bwiza bwo gukora:Mbere yo gusiga irangi, banza urebe neza niba ukoresha icyuma gishyushya kandi gisukuye hakoreshejwe ikoranabuhanga, kandi wemeze niba ubudahangarwa bw'ubushyuhe bushobora kwihanganira.

Uburyo Busanzwe bwo Kunanirwa n'Ingaruka Zabwo z'Ikirahure

Mu musaruro, iyo icyuma gikozwe mu cyuma cyangiritse, ingaruka zikunze kubaho ntabwo ari ppm nke gusa, ahubwo ni ugutakaza burundu ikoreshwa ryacyo ndetse no kwangirika kw'ubushobozi bw'imashini mu byumweru byinshi. Iki si ikibazo cy'ingenzi gusa—ni ikibazo cy'uburyo ibintu bihagaze.