Iterambere sic gukura kwingenzi ibintu byingenzi

Iyo silicon karbide kristal ikura, "ibidukikije" byimbere yo gukura hagati ya axial centre ya kristu hamwe nuruhande biratandukanye, kuburyo guhangayikishwa na kirisiti kumpera byiyongera, kandi impande ya kirisiti byoroshye kubyara "inenge zuzuye" bitewe ku ngaruka za grafite ihagarika impeta “karubone”, uburyo bwo gukemura ikibazo cyuruhande cyangwa kongera ubuso bwiza bwikigo (kurenga 95%) ni ingingo ya tekiniki yingenzi.

Nkuko inenge ya macro nka "microtubules" na "inclusitions" igenzurwa buhoro buhoro ninganda, igahindura kristu ya kariside ya silikoni "gukura vuba, muremure kandi muremure, no gukura", inkombe "inenge yuzuye" iragaragara cyane, kandi hamwe na kwiyongera kumurambararo nubunini bwa silicon karbide kristal, inkombe "inenge yuzuye" izagwizwa na diameter kare nubunini.

Ikoreshwa rya tantalum karbide TaC ni ugukemura ikibazo cyuruhande no kuzamura ireme ryikura rya kristu, nimwe mubyerekezo byingenzi bya tekinike yo "gukura vuba, gukura cyane no gukura". Mu rwego rwo guteza imbere iterambere ry’ikoranabuhanga mu nganda no gukemura “gutumiza mu mahanga” ibikoresho by’ibanze, Hengpu imaze gutera imbere ikemura ikibazo cya tantalum carbide coating (CVD) kandi igera ku rwego mpuzamahanga.

Tantalum karbide TaC itwikiriye, uhereye kubitekerezo ntibigoye, hamwe no gucumura, CVD nubundi buryo byoroshye kubigeraho. Uburyo bwo gucumura, gukoresha ifu ya tantalum ya karbide cyangwa preursor, ukongeramo ibintu bifatika (muri rusange ibyuma) hamwe nu mukozi uhuza (muri rusange urwego rurerure rwa polymer), ushyizwe hejuru yubuso bwa grafitike yashizwemo ubushyuhe bwinshi. Ukoresheje uburyo bwa CVD, TaCl5 + H2 + CH4 yashyizwe hejuru ya matrix ya grafite kuri 900-1500 ℃.

Nyamara, ibipimo byibanze nka kristu yerekanwe ya tantalum ya karbide, uburebure bwa firime imwe, kurekura impagarara hagati ya coating na matrix ya grafite, ibice byo hejuru, nibindi, biragoye cyane. Cyane cyane muri sic kristal yo gukura ibidukikije, ubuzima butajegajega ubuzima nibintu byingenzi, nibyo bigoye cyane.