Ifu nto ya SiC ikorwa ite?

SiC crystal imwe ni ibikoresho bya semiconductor bya Group IV-IV bigizwe n'ibintu bibiri, Si na C, mu gipimo cya stoichiometric cya 1: 1. Ubukana bwayo ni ubwa kabiri nyuma ya diyama.

Uburyo bwo kugabanya karuboni ya silicon oxyde mu gutegura SiC bushingiye ahanini kuri formula ikurikira y'ibinyabutabire:

Uburyo bwo kugabanya karuboni ya silicon oxyde bugoye cyane, aho ubushyuhe bw'uburyo bwo kugabanya karuboni bugira ingaruka ku musaruro wa nyuma.

Mu gutegura karubide ya silikoni, ibikoresho fatizo bibanza gushyirwa mu itanura rirwanya. Itanura rirwanya rigizwe n'inkuta zombi, rifite electrode ya grafiti hagati, kandi umutwe w'itanura uhuza electrode ebyiri. Ku nkengero z'umutwe w'itanura, ibikoresho fatizo bigira uruhare mu gukora reaction bibanza gushyirwaho, hanyuma ibikoresho bikoreshwa mu kubungabunga ubushyuhe bishyirwa ku nkengero z'itanura. Iyo gushonga bitangiye, itanura rirwanya rihabwa ingufu kandi ubushyuhe buzamuka bukagera kuri dogere selisiyusi 2.600 kugeza 2.700. Ingufu z'amashanyarazi zishyuha zijyanwa mu muriro unyuze hejuru y'umutwe w'itanura, bigatuma ushyuha buhoro buhoro. Iyo ubushyuhe bw'umuriro burenze dogere selisiyusi 1450, habaho reaction ya shimi ikora karubide ya silikoni na gaze ya monoxyde de carbone. Uko igikorwa cyo gushonga gikomeza, agace k'ubushyuhe bwinshi mu muriro kazagenda kiyongera, kandi ingano ya karubide ya silikoni nayo iziyongera. Karubide ya silikoni ikomeza kubaho mu itanura, kandi binyuze mu guhumeka no kugenda, kristu zigenda zikura buhoro buhoro amaherezo zigaterana zigahinduka kristu z'umuzenguruko.

Igice cy'urukuta rw'imbere rwa kristu gitangira kubora bitewe n'ubushyuhe bwinshi burenga dogere selisiyusi 2.600. Igice cya silikoni gikorwa no kubora kizongera kwihuza n'igice cya karuboni kiri mu muyoboro kugira ngo kibe karuboni nshya.

Iyo uburyo bwo gukora imiti ya silikoni karubide (SiC) burangiye kandi itanura rimaze gukonja, intambwe ikurikiraho ishobora gutangira. Ubwa mbere, inkuta z'itanura zirasenywa, hanyuma ibikoresho fatizo biri mu itanura bigatoranywa kandi bigashyirwa mu byiciro ku rundi ruhande. Ibikoresho fatizo byatoranijwe birasenywa kugira ngo haboneke ibikoresho fatizo twifuza. Hanyuma, imyanda iri mu bikoresho fatizo ikurwaho binyuze mu koza cyangwa gusukura hakoreshejwe aside na alkali, ndetse no gutandukanya magnetic n'ubundi buryo. Ibikoresho fatizo byasukuwe bigomba kumywa hanyuma bigasuzumwa, hanyuma amaherezo hakaboneka ifu ya silikoni karubide. Iyo bibaye ngombwa, iyi fu ishobora gukomeza gutunganywa hakurikijwe ikoreshwa nyaryo, nko gushushanya cyangwa gusya neza, kugira ngo hakorwe ifu ya silikoni karubide nziza.

Intambwe zihariye ni izi zikurikira:

(1) Ibikoresho fatizo

Ifu nto ya silicon carbide y'icyatsi kibisi ikorwa hakoreshejwe silicon carbide y'icyatsi kibisi cyane. Ibigize shimi bya silicon carbide bigomba kuba birenga 99%, naho carbon na oxide y'icyuma bidafite agaciro bigomba kuba biri munsi ya 0.2%.

(2) Yavunitse

Kugira ngo umucanga wa silikoni ucike ifu nziza, ubu uburyo bubiri bukoreshwa mu Bushinwa, bumwe ni ugusya uruganda rw’umupira rukoresha amazi mu gihe runaka, ubundi ni ugusya ukoresheje uruganda rukoresha ifu ikoreshwa mu guhumeka.

(3) Gutandukanya amashanyarazi

Uburyo bwose bukoreshwa mu gusya ifu ya karubide ya silikoni ikayihindura ifu nziza, gutandukanya magnetic ikoresheje amazi no gutandukanya magnetic ikoresheje ikoranabuhanga bikunze gukoreshwa. Ibi biterwa nuko nta mukungugu ubaho mu gihe cyo gutandukanya magnetic ikoresheje amazi, ibikoresho bya magnetic biratandukanye burundu, umusaruro nyuma yo gutandukanya magnetic urimo icyuma gito, kandi ifu ya karubide ya silikoni ikurwaho n'ibikoresho bya magnetic nayo iba nke.

(4) Gutandukanya amazi

Ihame ry'ibanze ry'uburyo bwo gutandukanya amazi ni ugukoresha umuvuduko utandukanye wo guterura uduce twa silikoni karubide dufite uburebure butandukanye mu mazi kugira ngo hakorwe isesengura ry'ingano y'uduce.

(5) Gupima icyuma gipima ikoranabuhanga (ultrasound)

Hamwe n’iterambere ry’ikoranabuhanga rya ultrasound, ryanakoreshejwe cyane mu gupima ikoranabuhanga rya ultrasound ry’ifu nto, rishobora gukemura ibibazo byo gupima nko gukurura cyane, koroha guteranya, amashanyarazi menshi adahinduka, ubunini bwinshi, ubucucike bwinshi, n’uburemere bwihariye bw’urumuri.

(6) Igenzura ry'ubuziranenge

Igenzura ry’ubuziranenge bwa micropowder rikubiyemo imiterere ya shimi, ingano y’uduce duto n’ibindi bintu. Ku bijyanye n’uburyo bwo kugenzura n’amahame y’ubuziranenge, nyamuneka reba “Ibisabwa mu buhanga bya Silicon Carbide.”

(7) Gukora ivumbi ryo gusya

Nyuma y'uko ifu ntoya ishyizwe mu matsinda no gupimwa, umutwe w'ibikoresho ushobora gukoreshwa mu gutegura ifu isya. Gukora ifu isya bishobora kugabanya imyanda no kongera uruhererekane rw'ibicuruzwa.