He aha te muka karāhe kuata?
muka karāhe kuataHe rauemi muka kore-waro te muka, ko te hauhā silicon (SiO₂) he ≥99.9% te parakore hei wāhanga matua. Ka hangaia mā te tukanga tuhi tokotoko silica kua hanumi. Ka whakakotahihia e tēnei rauemi muka ngā āhuatanga me ngā āhuatanga pai o te quartz totoka, ka waiho hei rauemi ātete pāmahana teitei pai rawa atu. Ka taea hoki te whakakotahi ki ngā uku, te alumina, ngā nitrides, me ētahi atu rauemi i roto i ngā momo āhua hei hanga rauemi hiato me ngā āhuatanga motuhake. Ka hangaia te miro muka quartz mā te miro me te whakamahi i ngā miro mata.
He aha te kaha o te muka kuata, ā, he aha ōna āhuatanga pai?
1. He tino pai te ātete o te muka karāhe kuata ki te pāmahana teitei. Ko tōna pāmahana mahi mō te wā roa ko te 1050-1200℃, ā, ko tōna ātete pāmahana tere ka eke ki te 1700℃. Ka mau tonu tōna kaha teitei i raro i ngā āhuatanga pāmahana teitei, he ātete ki te ru wera me te tango, ā, ka taea te whakamahi i roto i te tiaki wera rererangi, i ngā pūwero miihini rōkete, me ngā rauemi whakamarumaru pāmahana teitei.
2. He tino pai ngā āhuatanga whakawehenga hiko me te tuku ngaru pai. Ko tōna pūmau whakawehenga hiko he iti iho i te 3.7, ā, ko tōna tauwehenga mate whakawehenga hiko he <0.001>. He iti te mate tuku tohu auau-teitei me te tuku ngaru teitei (tae atu ki te 99.3%), koinei tētahi o ngā āhuatanga mahi matua e pai ai mō ngā tuanui radar, ngā radome pūihi, ngā papa whakawhitiwhiti kōrero 5G, me ngā taputapu tiaki pere.
3. He kaha ā-ringa teitei te muka kuata. Ka taea e tōna kaha kume te eke ki te >1500MPa, te mātotoru 2.29g/cm³, he māmā engari he kaha te hanganga, ka whakaiti i te taumaha o ngā taputapu me te pupuri tonu i te pakari. Hei tāpiri, ka taea te whakakotahi me ētahi atu rauemi hei hanga i ngā whakakaha hiato mahi-teitei, ka waiho hei rauemi nui mō ngā wāhanga hanganga amiorangi.
4. He mea whakamiharo tōna pumau matū tino pai. Mēnā he ≥99.9% te ihirangi SiO₂, he kaha tōna koretake o te matū me te ātete ki te waikura, ā, ka urutau ki ngā taiao matū kino. Nā tēnei he mea pai mō ngā taputapu tukatuka haurua-ira, ngā rauemi tātari pāmahana teitei, me ngā kaikawe matū.
He maha ngā mara e whakamahia ana ngā hua i hangaia mai i te muka karāhe kuata.
1. He mea mōhio te huruhuru kuata me te huruhuru kuata ki te hunga e whakahaere ana i ngā whakamātautau pāmahana teitei. He muka poto puhuruhuru ēnei i hangaia mai i ngā muka kuata i pupuhihia, i kumea rānei, ka taea te whakamahi tika, te hanga rānei hei huruhuru. 1. Ko te huruhuru kuata te mea e tohuhia ana e tōna kakano māmā, pūwero me te iti o te kawe wera, he mea pai hei rauemi whakamarumaru pāmahana teitei. He mea whakamahi noa i roto i ngā paparanga whakamarumaru o ngā waka rererangi, i roto rānei i ngā taputapu pāmahana teitei ahumahi. Ko ngā wāhanga whakamarumaru mā, puhuruhuru, rite ki te miro me ngā wāhanga whakamarumaru rite ki te kuiti i runga i ngā papaaho i roto i ngā oumu ngongo taiwhanga me ngā oumu whakamahana he huruhuru kuata me te huruhuru kuata.
2. Te tapahi tonungā muka kuataKa puta he muka kuata tapatapahi mai i ngā roa kua whakaritea. Ka taea te whakaranu i ēnei ki roto i ngā kapia ātete pāmahana teitei hei whakapakari me hei tuku ngaru, ā, ka taea te hanga tahi hei hanga rauemi whakakore wera, hei ārai wera rānei mō te hanga wāhanga pēnei i ngā radome pere.
3. He miro tonu te miro muka kuata, ā, koia te rauemi pūtake mō te raranga i muri mai. Hei tētahi o ngā muka kore-waro tino ātete ki te wera me te whai hua ki te whakakore hiko, he maha ngā wā ka whakamahia hei wāhanga whakapakari hei raranga i ngā momo papanga, hei hanga tika rānei mō te takai me te hanga rauemi hiato. Hei tāpiri, mā te hangarau raranga toru-ahu matatau ka taea te raranga i ngā muka ki te wāhi. He kaha te hanganga whānui o tēnei hanganga, ā, he mea tino pai mō te hanga i ngā wāhanga uaua te āhua, te kawenga teitei pērā i ngā pūwero miihini rōkete.
4. Kakahu muka kuatahe mea whatu mai i te miro mā te whakamahi i te whatu mania, te whatu twill, te whatu satin, me ētahi atu tukanga. Hei rauemi whakapakari, ka whakakotahihia ki ngā matrices pēnei i te polyimide me te epoxy resin hei hanga i ngā wāhanga hanganga pāmahana-tiketike mō ngā waka rererangi, ngā rōkete, me ngā pere, tae atu ki ngā rauemi ārai-wera, ātete-ātete rānei mō ngā antenna amiorangi me ngā papa ara iahiko tānga auau-tiketike.
Wā tuku: Hakihea-12-2025
