Karubide ya silikoni ifatanye n'ingarukaibisasubigaragaza iterambere mu ikoranabuhanga rirwanya ubushyuhe, ritanga imikorere idasanzwe mu bidukikije bishyuha cyane. Ibi bikoresho bya keramike byabaye ingenzi cyane mu nganda zikora ibyuma, gukata neza, ubwubatsi bw'imashini, no gutunganya imiti, bitanga imikorere myiza aho ibikoresho gakondo bitagenda neza.
Ibyiza by'ingenzi bya tekiniki
Ibyuma bikoreshwa mu gutwika bya RBSC birusha ibindi bikoresho bisanzwe bya alumina na grafiti binyuze muri ibi bikurikira:
- Uburyo budasanzwe bwo gutwara ubushyuhe (120–150 W/m·K kuri 1000°C)
- Igipimo cyo kwaguka k'ubushyuhe buri hasi cyane (4.5×10⁻⁶/K)
- Ubudahangarwa bw'ubushyuhe bushobora kwihanganira ubukonje bukabije bw'incuro 50+ (1600°C →25°C)
- Ubudahangarwa bw'aside/alkali mu kwangirika (pH 0–14 ihuye)
- Gukomera kw'umwuka mu kirere kugeza kuri 1650°C
Ubuhanga mu by'ibyuma
Mu gukora ibyuma bya alloy no gushongesha ibyuma bidakoresha feri (aluminium, umuringa, zinc), ibikoresho bya RBSC bituma:
- Igipimo cyo gushonga cyihuse cya 20–30% binyuze mu kohereza ubushyuhe neza
- 99.95% by'ubuziranenge bw'icyuma binyuze mu bintu bidakora neza
- Kugabanuka k'ubwiyongere bw'ibishishwa binyuze mu kugabanuka k'ubushyuhe
- Igihe kirekire cyo gukora (igihe kirekire kurusha 3–5× kurusha ibyuma by'ibumba-grafiti)
Uburyo bwo gukata neza no gukoresha ikoranabuhanga mu buryo bugezweho
Imiterere yihariye y’imashini z’ibicanwa ishyigikira ibisabwa mu nganda:
- Ubusugire bw'imiterere burambye munsi ya 15–20 MPa
- Guhagarara neza mu buryo buhoraho (± 0.1% ihinduka ry'ubushyuhe kuri 1500°C)
- Gutunganya ibikoresho byo mu kirere nta kwanduzwa bihari
- Imikorere yizewe muri sisitemu zo gukata zikoresha centrifugal
Ubuhanga mu gutunganya imiti
Ibikoresho bya RBSC bikemura ibibazo bikomeye mu gukora imiti:
- Kubika neza imyunyu yashongeshejwe (urugero, NaOH, KNO₃)
- Umurimo uhamye mu bijyanye n'ibisubizo bya sulfidation/chlorination
- Ubudahangarwa bw'ubushyuhe bwa HF kugeza kuri 800°C
- Kubungabunga ubuziranenge mu gukuramo ibintu by'ubutaka budasanzwe
Ubukungu bw'Imikorere
Nubwo ibiciro bya mbere biri hejuru ya 40-60% ugereranyije n'ibikoresho bisanzwe byo mu mazi, ibisubizo bya RBSC bitanga:
- Kugabanuka kwa 70% mu gihe cyo gusimbuza ibintu
- Kuzigama ingufu 25–35% binyuze mu kunoza imikorere y'ubushyuhe
- 90% by'ibikoresho bishobora kongera gukoreshwa binyuze mu kongera gukoresha ubushyuhe
- Ibisabwa hafi ya zeru mu kubungabunga
Udushya twihariye mu nganda
1. Gukora Aloyi ya Titanium
- Ihangana n'ubushyuhe bwa Ti buhinduka ku gipimo cya 1700°C
- Birinda kwanduzwa kwa karuboni
2. Guhuza ibikoresho bya bateri
- Ifasha gutunganya cathode ya LiCoO₂ imwe
- Irwanya kwangirika k'umunyu wa lithiamu
3. Gukura kwa Crystalline ya Semiconductor
- Igumana ubwuzuzanye bwinshi cyane bw'ibikoresho byo mu bwoko bwa vacuum
- Ikuraho umwanda wa silicon carbide
Igishushanyo mbonera cy'ejo hazaza
Ibikoresho bigezweho bya RBSC birimo ibintu bigezweho:
- Imiterere y'umuvuduko w'ubushyuhe mu buryo bwo kugenzura imyuka ivamo
- Irangi ry'ubuso rikoresha nanoscale rituma habaho ubudahangarwa bw'amacandwe
- Ibikoresho by'ubushyuhe byashyizwemo kugira ngo bigenzure ibikorwa
Kuva ku bushakashatsi bwakorewe muri laboratwari kugeza ku musaruro w’inganda, ibikoresho bya silikoni bya karubide bifatanye na reaction-bond bikomeje gusobanura ubushobozi bwo gutunganya ubushyuhe. Uruvange rwabo rwihariye rw’imiterere y’ubushyuhe, mekanike, na chimique rubishyiraho nk'ibikoresho by’ingenzi mu gukoresha ubushyuhe bwinshi mu gihe kizaza, bigatuma imikorere myiza n’ubwiza birushaho kunozwa mu nganda nyinshi zikora ibintu byateye imbere.
Igihe cyo kohereza: Werurwe-20-2025