Ibumba rya silicon carbide (SiC) ryamaze igihe kinini rikoreshwa cyane mu nganda zitandukanye zigezweho bitewe n’ubukomere bwaryo bwinshi, imbaraga nyinshi, ingano nto y’ubushyuhe, ubushobozi bwo gutwara ubushyuhe bwinshi, ubushobozi bwiza bwo kudahinduka kw’ibinyabutabire, ubushobozi bwiza bwo kurwanya ubushyuhe no kurwanya ogisijeni. Uretse imiterere yavuzwe haruguru ya silicon carbide ceramics, bumba rya silicon carbide rifite imyenge, rifite imiterere yihariye y’imyenge mito, rifite amahirwe menshi yo gukoreshwa mu nzego zitandukanye nko mu byuma, mu buhanga mu bya chimique, mu kurengera ibidukikije no mu ngufu, bikongera cyane uburyo bwo gukoresha bumba rya silicon carbide.
Imiterere yihariye yakeramike ya silikoni ifite utubuto twinshiahanini bungukira ku miterere yazo yihariye y’imyenge, irimo imyenge, ingano y’imyenge n’uko ikwirakwira, n’imiterere y’imyenge, nibindi. Kubwibyo, ni ngombwa kugenzura imyenge yayo, ingano y’imyenge n’uko ikwirakwira, ndetse n’imiterere y’imyenge binyuze mu buryo bwo kuyitegura kugira ngo haboneke imiterere y’imyenge yifuzwa. Kubwibyo, uburyo bwo kuyitegura bwagiye buba ari bwo bushakashatsi bw’abantu. Iyi nkuru isuzuma ahanini intambwe ubushakashatsi bwateye mu buryo bwo gutegura imyenge ya silikoni carbide mu gihugu no mu mahanga mu myaka ya vuba aha.
1. Uburyo bwo gukora ibintu
Uburyo bukoreshwa mu buryo bw'umubiri buvuga ko icyuho kiri mu byuma bya silikoni bifite imyenge giterwa n'ibintu byinshi bibaho mu gihe cyo gutegura, hatabayeho ibikorwa bya shimi cyangwa gukora ibintu bishya. Uburyo bw'ingenzi ni ugukora imiterere ifite imyenge hishingikirijwe ku cyuho gisigaye bitewe n'ubushyuhe bw'ibintu bikomeye, ihindagurika ry'amazi, no guhindagurika kw'igice gikomeye. Uburyo busanzwe burimo uburyo bwo gukusanya ibice, uburyo bwo gukonjesha, uburyo bwo gukamisha sol-gel, nibindi. Ikoranabuhanga rya 3D ryagaragaye mu myaka ya vuba aha rishobora no gukoreshwa mu gucapa no gutegura imiterere ifite imyenge.
1.1 Uburyo bwo gushyira uduce duto mu byiciro
Uburyo bwo gupakira uduce duto ni bwo buryo bworoshye bwo gutegura ibumba rya silikoni karubide rifite imyobo. Ihame ry'ubu buryo ni ugukoresha imikorere yo gupakira uduce duto twa silikoni ubwatwo kugira ngo hakorwe imitsi yo gupakira hagati y'uduce dutandukanye twa SiC, bityo bigatuma uduce duto twibumbira hamwe dukora ibumba rifite imyobo. Kugira ngo bigabanye ubushyuhe bwo gupakira, ingano runaka y'icyuma gifunga gifite aho gishongesha hanini ikunze kongerwamo kugira ngo habeho isano hagati y'uduce dutandukanye twa SiC. Kubera ko imyenge yose iri mu buryo bwo gupakira uduce duto ihinduka uhereye ku cyuho kiri hagati y'uduce duto twa SiC, ingano y'imyenge n'ingano y'ibumba ryarangije gupakira bishobora kugenzurwa hakoreshejwe guhindura ingano y'ifu, ubwoko n'ingano y'icyuma gifunga, hamwe n'ibipimo byo gupakira.
Gutegura ibumba rya silikoni karubide rifite imyenge hakoreshejwe uburyo bwo gushyiramo uduce duto ntibisaba kongeramo ibindi bintu bitera imyenge. Uburyo bworoshye kandi bworoshye kugenzura. Ariko, imyenge y'ibumba rifite imyenge ryateguwe n'ubu buryo muri rusange iba iri hasi. Imiterere, ingano y'imyenge n'imyenge y'imyenge bigenwa ahanini n'imiterere, ingano y'imyenge n'uko uduce tw'ibikoresho fatizo dukwirakwira, ndetse n'urwego rwo gutwika.
1.2 Uburyo bwo kumisha mu buryo bukonjesha
Gukonjesha ni uburyo busaba kuvanga neza ibintu bya ceramic n'amazi cyangwa ibintu bivangwa n'ibinyabuzima mu gihe hari ingano ikwiye y'ibinyabutabire cyangwa ibifunga kugira ngo bikore ururenda. Hanyuma, ururenda ruvanze neza rusukwa mu ibumba hanyuma rugakonjeshwa vuba ku bushyuhe buke, bigatuma imiterere y'ururenda ikomera vuba ikaba ikintu gikomeye. Nyuma yaho, ururenda rukomera rukurwamo binyuze mu kugabanya umuvuduko cyangwa kuvunika mu cyuma gishyushye. Uburyo bwo kubona umubiri w'icyatsi kibisi ufite imyenge igororotse yasigaye mu rurenda hanyuma amaherezo ukarutwika kugira ngo rukore silicon carbide ceramics ifite imyenge.
1.3 Uburyo bwo gucapa mu buryo bwa 3D
Uburyo bwo gucapa bwa 3D mu gutegura ibumba rya silicon carbide rifite imyenge ni ubwoko bushya bw'uburyo bwo gutegura bwateye imbere mu myaka ya vuba aha. Ubu buryo bushingiye ku buryo bw'amakuru y'ibice bitatu yakozwe hifashishijwe ubufasha bwa mudasobwa. Binyuze mu mutwe w'icapiro, ibumba riterwamo amavuta kugira ngo rishyire urwego rw'ifu y'ibikoresho fatizo ku rundi ruhande mu buryo bw'urusobe rw'ibice bitatu. Guhuza uburyo bwo gucapa bwa 3D n'uburyo bwo gusohora ibintu bishobora gutuma habaho gukora ibintu bidafite ibumba kandi bigakora ibumba rifite imiterere igoye.
Uburyo bwo gucapa bwa 3D bwo gutegura ibumba rya silicon carbide rifite imyobo myinshi, uburyo bworoshye bwo gutegura no gutunganya, kandi nta mpamvu yo gukoresha ibumba. Ntabwo bushobora gukoreshwa gusa mu gutegura ibumba rya silicon carbide rifite imyobo ifite imiterere igoye, imiterere imwe n'imyanya myiza, ahubwo n'ingano y'imyobo ya silicon carbide iragenzurwa kandi irashobora guhindurwa. Ariko, ubu buryo buracyari mu cyiciro cy'ubushakashatsi muri iki gihe, kandi ibipimo by'imikorere biracyakeneye kunozwa kurushaho. Byongeye kandi, ubu buryo buragoye gutegura ibumba rya silicon carbide rifite imyobo myinshi mu ntambwe imwe. Bisaba ubufasha bw'izindi nzira kugira ngo hakorwe ibicuruzwa byifuzwa, ibyo bikaba bihenda cyane.
1.4 Gutanga ifuro
Uburyo bwo gushushanya ifuro bukubiyemo kongeramo umwuka cyangwa ibintu bishobora gutanga umwuka binyuze mu gutunganya nyuma ku mubiri w’icyatsi kibisi cya ceramic cyangwa icyambere, hanyuma ukawucukura kugira ngo ubone ibumba rya silicon carbide rifite imyenge. Bitandukanye n’ubundi buryo bwo gutegura, uburyo bwo gushushanya ifuro ni inzira nziza yo gutegura ibumba rya closed-cell ceramics.
2. Uburyo bwa shimi
Uburyo bwa chimique bwerekeza ku kuba imiterere y’imyenge iri mu mashini za silicon carbide zifite imyenge ikorwa no kubora cyangwa gukorana kw’imyunyu idakomoka ku bimera cyangwa ibintu by’umwimerere byongewemo, bigatuma icyuho kigaragara mu myanya yacyo ya mbere. Uburyo busanzwe bwa chimique bwo gutegura mashini za silicon carbide zifite imyenge burimo uburyo bwo kongeramo imyenge, uburyo bwo gutera ifuro ry’umwimerere, n’uburyo bwa biologique, nibindi.
2.1 Gutera ifuro ry'umwimerere
Uburyo bwo gutera ifuro ry’umwimerere bukubiyemo gukoresha ifuro ry’umwimerere nk'icyitegererezo, gusiga ifuro ry’ibumba ryateguwe ku gishushanyo cyangwa gushyira ifuro mu gishushanyo kugira ngo umwuka usohoke, ukareba ko ifuro ry’ibumba ry’umwimerere rifata neza ku gishushanyo cy’ibumba ry’umwimerere. Hanyuma, binyuze mu kumisha no gutwika ubushyuhe bwinshi, ifuro ry’umwimerere rirakurwaho, bityo hakaboneka ifuro ry’ibumba rifite imyenge.
Ingorane ikomeye y'ubu buryo ni uko budashobora gukora ibintu bifite imyenge mito ifunze. Imiterere yabwo iragabanuka kandi imikorere ya preform igirwaho ingaruka cyane n'ibikoresho fatizo. Ubucucike n'imbaraga by'ibikoresho bya ceramic bifite imyenge byateguwe nabyo biragoye kubigenzura.
2.2 Uburyo bwo kongeramo ibintu bitera imyenge
Gutegura ibumba rya silikoni rya karubide rifite imyenge yo kongeramo ibintu bihindura imyenge bisaba kongeramo ibintu bihindura imyenge ku ifu ya silikoni cyangwa ibintu bibanza, hanyuma gukuraho ibintu bihindura imyenge binyuze mu nzira zikurikiraho. Kubera iyo mpamvu, imyanya yari iriho mbere n’ibintu bihindura imyenge ikora imyenge ikora imyenge, hanyuma hagakorwa ubushyuhe n’ubushyuhe kugira ngo hakorwe ibumba rifite imyenge. Kubwibyo, guhindura ubwoko n’ingano y’ibintu bihindura imyenge bishobora kugenzura byoroshye imiterere y’imyenge, imiterere y’imyenge, ingano y’imyenge n’uko ikwirakwira ry’ibumba ryarangiye rifite imyenge. Ubwoko bw’ibintu bihindura imyenge ni bwinshi cyane, harimo polimeri karemano cyangwa zikoze mu buryo bw’umwimerere, ibinyobwa, umunyu, ibumba cyangwa izindi fu, nibindi. Uburyo bwo gukuraho ibintu bitandukanye bihindura imyenge buratandukanye. Ibintu bihindura imyenge bya polikoni bisanzwe bikurwaho hakoreshejwe ubushyuhe no kubora, ibintu bihindura imyenge y’amazi bishobora gukurwaho binyuze mu gukaraba no gukaraba, umunyu ushobora gukurwaho hakoreshejwe kuyungurura amazi, kandi ifu ya silikoni ishobora gukurwaho hakoreshejwe kuyungurura umuti ukwiye.
2.3 Uburyo bw'imbonerahamwe y'ibinyabuzima
Imiterere y'imirongo mito cyane mu bikoresho by'ibinyabuzima itandukanye cyane n'iyo mu bikoresho by'ubukorikori. Bitewe n'imiterere yayo yihariye, gutegura ibikoresho bya ceramic bifite imirongo isa hakoreshejwe ibinyabuzima nk'ibishushanyo byakunzwe cyane [10]. Uburyo bwa biology template n'uburyo bwa organic foam impregnation bihuriye ku bintu bisa. Uburyo bwa organic foam impregnation bukoresha sponge y'ubukorano nk'imbonerahamwe, mu gihe uburyo bwa biology template bukoresha ibinyabuzima karemano nk'imbonerahamwe.
Uburyo bwa biologique bwo gutegura silicon carbide ifite imyenge bufite ibyiza byo gukora ibintu byoroshye kandi bihendutse. Bushobora gukora ceramic zifite imiterere igoye kandi bushobora kwigana imiterere y'ibikoresho karemano by'ibinyabuzima ku rugero runini. Ariko, imiterere ya biologique ikunze kwangirika mu gihe cy'ubushyuhe bwinshi bwa karuboni, bigira ingaruka zikomeye ku miterere ya silicon carbide ifite imyenge. Byongeye kandi, imiterere y'imyenge ya silicon carbide ifite imyenge yateguwe ahanini ishingiye ku miterere mito ya biologique ubwayo, kandi imiterere yayo ni mibi. Byongeye kandi, ubu buryo bufite n'ibibi bimwe na bimwe, nko kuba SiC ifite ubushobozi buke bwo kuyihindura, koroshya gusenya SiC reaction layer, ndetse n'igihe kirekire cyo kuyitegura.
Igihe cyo kohereza: 22 Nyakanga-2025