Ngwakọta carbon/carbon (Ngwakọta C/C) bụ ihe mejupụtara carbon zuru oke nke mejupụtara eriri carbon na carbon matrix. Ihe pụrụ iche ya dị na nhazi ya dabere na carbon kpamkpam, ebe netwọk eriri carbon na-eje ozi dị ka usoro nhazi, ebe carbon matrix nke pyrolytic carbon ma ọ bụ resin carbonization mepụtara na-arụ ọrụ dị ka ihe na-ejupụta, na-enweta njikọ siri ike na nke siri ike na ọkwa microscopic.
Ihe ndekọ mbụ a maara nke ọma nke ihe a malitere n'oge nchọpụta mberede ya n'ụlọ nyocha US na 1958. Usoro mmepụta ya agbanweela site na mmepe teknụzụ dịka nchekwa anwụrụ kemịkalụ (CVD) na itinye mmiri mmiri, na-eme ka ọ bụrụ alaka dị mkpa nke ihe ọgbara ọhụrụ dị elu. N'ụzọ bụ isi, ihe mejupụtara carbon/carbon na-enweta nhazi pụrụ iche nke na-ejikọta ihe ndị dị mfe na ike dị elu site na ịhazi eriri carbon na ịbawanye matrix carbon, na-enye ngwọta ọhụrụ maka gburugburu ebe obibi dị oke njọ.
Ngwakọta carbon/carbon na-egosi ihe ndị dị mkpa n'anụ ahụ n'ọtụtụ akụkụ, na-eme ka ha bụrụ ihe a na-apụghị ịgbanwe agbanwe n'ebe dị oke njọ. Nke mbụ, njupụta ha sitere na 1.5 ruo 2.0 g/cm³, ihe na-erughị otu ụzọ n'ụzọ anọ nke superalloys dabere na nickel, mana ha na-enweta nnukwu mmezi na ike na nguzogide kpọmkwem.
Ihe dị ịtụnanya bụ na arụmọrụ okpomọkụ ha dịkwa oke mma: ha na-ejigide iguzosi ike n'ezi ihe n'ihe owuwu karịa 1,650°C, yana oke elu nke echiche nke 2,600-3,500°C, na-eme ka ha bụrụ naanị ihe owuwu okpomọkụ dị elu nke nwere ike ịrụ ọrụ na okpomọkụ karịrị 3,000°C.
N'ihe gbasara okpomọkụ, ihe a na-egosi obere ihe gbasara mgbasawanye okpomọkụ (<1×10⁻⁶/°C) na oke iguzogide ujo okpomọkụ, na-ebelata mgbawa n'okpuru usoro ọkụ ọkụ ma ọ bụ oyi ngwa ngwa. N'ihe gbasara igwe, ike mgbanwe ya na-abawanye ka okpomọkụ na-arị elu, na-aka mma karịa arụmọrụ okpomọkụ ụlọ na 2,000°C.
Ọzọkwa, o nwere nnukwu ike okpomọkụ (200 W/m·K n'akụkụ eriri), ihe ndị dị elu na tribological (ihe na-akpata esemokwu nke 0.2-0.4), na nkwụsi ike dị oke mma. Njikọta pụrụ iche nke ihe ndị a na-eme ka arụmọrụ kwụsiri ike n'okpuru ọnọdụ siri ike, gụnyere oke okpomọkụ, ibu dị elu, na nchara siri ike, na-atọ ntọala maka ngwa ndị na-apụta ìhè na mbara igwe, ike mmeghari ohuru, na ubi ndị ọzọ dị elu.
N'ihi ihe pụrụ iche ha nwere,ihe mejupụtara carbon/carbonachọtala ọtụtụ ngwa dị iche iche n'ọtụtụ ụlọ ọrụ.
Ụgbọelu
N'ihe gbasara ikuku ụgbọelu, ihe mejupụtara carbon/carbon bụ ihe a na-ahọrọ maka ihe ndị dị n'okpomọkụ dị elu. Dịka ọmụmaatụ, nozzles rọketi, agụba turbine dị na injin ụgbọelu, na sistemụ nchekwa okpomọkụ maka ụgbọ ala ịbanye ọzọ na-eji ihe ndị a. Nguzogide okpomọkụ dị elu na njirimara dị mfe ha na-eme ka ha dị mma maka ụgbọ elu na ụgbọelu.
Ụlọ ọrụ ụgbọala
Ka ọ na-esiwanye ike maka arụmọrụ mmanụ ụgbọala na nchekwa gburugburu ebe obibi n'ụgbọala, ihe mejupụtara carbon/carbon abanyela n'ụlọ ọrụ ụgbọ ala, ọkachasị n'ọsọ ọsọ. Ike ha dị elu na ihe ndị dị mfe ha na-ebelata ibu ụgbọala nke ọma, na-eme ka ọsọ na njikwa dịkwuo mma. A na-ejikwa diski brek carbon/carbon n'ọtụtụ ebe n'ụgbọala supercars na ụgbọala ndị na-agba ọsọ.
Ụlọ ọrụ metallurgical
N'ọrụ igwe, a na-ejikarị ihe mejupụtara carbon/carbon eme ihe na ngwa ọkụ dị elu na sistemụ ịgbaze ihe. Ha na-eguzogide okpomọkụ na nchara dị egwu na-eme ka ọrụ kwụsie ike na gburugburu ebe dị oke njọ, na-eme ka usoro ịgbaze ihe dị mfe.
Eletrọniki na Ike
Ọkwa eletriki nke ihe mejupụtara carbon/carbon na-enye ha ohere itinye n'ọrụ na eletrọniki. Dịka ọmụmaatụ, n'ụfọdụ ihe eletrọniki nwere ike dị elu, ihe ndị a na-eme ka okpomọkụ dị mma, si otú a na-eme ka ọrụ kwụsie ike na ndụ dịkwuo mma.
Na mgbakwunye, ojiji ya na-aga n'ihu na-agbasa n'ọnọdụ dịka semiconductor wafer production thermal fields, nuclear reactor neutron moderators, na ọgwụ artificial bone implants. A na-atụ anya na nha ahịa ụwa ga-agafe ijeri yuan 17 ka ọ na-erule 2025.
Oge ozi: Sep-30-2025