Gukuraho imiyoboro y'imirasire ya Silicon Carbide: "Abatwara ubushyuhe" mu bidukikije bishyuha cyane

Mu rwego rw'ubushyuhe bwinshi mu nganda, kugera ku ihererekanya ry'ubushyuhe mu buryo bwizewe kandi bunoze byagiye biba ingenzi mu iterambere ry'ikoranabuhanga.Umuyoboro w'imirasire ya silicon carbideni ibikoresho byihariye byagenewe umwihariko mu bihe by'ubushyuhe bwinshi. Bikora nk'ikintu kidakoresha ingufu z'ubushyuhe kandi kikagira uruhare runini mu gushyushya amatanura mu nganda nka metallurgie, chemistry engineering, na ceramics. Reka dusobanukirwe ibanga ry'imikorere yabyo binyuze mu buryo butatu bw'ingenzi.
1, Inzitizi ikomeye yo kurinda igice cy'imbere
Ibice by'imbere by'umuyoboro w'imirasire ya silicon carbide bipfunyikwa neza mu muyoboro w'inyuma ukozwe mu bikoresho bya silicon carbide, bikagira uburinzi bubiri: umuyoboro w'inyuma wa silicon carbide ukora nk'umuyoboro w'imirasire y'ubushyuhe ndetse n'umurinzi w'umutekano, utuma ibintu bishyushya imbere bitandukanywa n'umuriro. Ntabwo byongerera gusa igihe cyo kubaho cy'imiyoboro y'imirasire ya silicon carbide, ahubwo binagabanya cyane ikiguzi cyo kubungabunga.
2, Uburyo bwihariye bwo kohereza ubushyuhe
Bitandukanye n'uburyo busanzwe bwo gushyushya, inyungu nyamukuru y'ibikoresho nk'ibi iri mu kohereza "imirasire y'ubushyuhe". Ubuso bw'umuyoboro wa silicon carbide ushyushye kugeza ku rwego rwo gushyushya buhora busohora imiraba y'imirasire ya infrared hanze. Uyu muraba w'urumuri utagaragara ushobora kwinjira mu kirere ugakora ku kintu gishyushye, kimwe n'uburyo urumuri rw'izuba rushyushya isi. Kohereza ubushyuhe burinda igihombo kiri hagati, binongera cyane imikorere y'ubushyuhe ugereranije n'ubushyuhe busanzwe, kandi bigatuma ubushyuhe bukwirakwira neza.

3, Iterambere rya crystallization mu bumenyi bw'ibikoresho
Guhitamo silicon carbide (SiC), ubwoko bushya bw'ibikoresho bya ceramic, bishobora gufatwa nk'ikintu cyo kurangiza. Ubudahangarwa bwayo bukabije butuma umuyoboro ukora neza kuri 1350 ℃, kandi imbaraga zayo zikubye inshuro nyinshi iz'icyuma gisanzwe; Imiterere yayo yihariye ya kristale ituma habaho ubudahangarwa bwiza bw'ubushyuhe, nubwo yahura n'ubukonje butunguranye n'ubushyuhe, ntabwo izacika; Ifite kandi ubushobozi bwo kurwanya ingese kandi ishobora guhangana n'ikirere gitandukanye cyangiza mu nganda ku buryo bworoshye. Ibi bintu hamwe bigize ishingiro ry'igihe kirekire cy'imikorere y'igikoresho.
Kubera ko hari kwiyongera gukenewe kw'umusaruro udafite umwanda, imiyoboro ya silicon carbide irasimbura buhoro buhoro imiyoboro isanzwe ishyushya ibyuma kandi iba amahitamo mashya yo kuvugurura ibikoresho bishyushya mu nganda. Igishushanyo cyayo gishya cyo "gushyushya no kohereza ingufu z'imirasire" kigabanya cyane ikiguzi cyo kubungabunga ariko kikanongera imikorere myiza y'ingufu, gitanga inkunga yizewe ya tekiniki mu guhindura ibidukikije inganda zikora. Iki gishushanyo mbonera cy'inganda gihuza neza imiterere y'ibikoresho n'amahame yo kohereza ubushyuhe kirimo kuvugurura amahame ngenderwaho y'inganda mu gushyushya ubushyuhe bwinshi.