'Kashi mai wuya' mai zurfi a cikin fasaha: yadda silicon carbide ceramics ke sake fasalin gaba

Bayan ci gaban fasaha a cikin saurin cajin sabbin motocin makamashi da injunan jiragen sama mafi inganci, akwai wani abu mai kama da talakawa amma mai ƙarfi -silicon carbide ceramics. Wannan yumbu mai ci gaba wanda ya ƙunshi abubuwan carbon da silicon, kodayake ba kamar yadda ake magana da su kamar kwakwalwan kwamfuta da batura ba, ya zama “jarumin ɓoye” a fagage masu tsayi da yawa saboda aikin “hard core”.
Mafi shaharar halayen yumbun silikon carbide shine “mafi ƙarfin daidaitawa” zuwa matsanancin yanayi. Kayan yau da kullun suna da haɗari ga lalatawar aiki a yanayin zafi mai girma, kama da "rashin ciwon zafi", amma har yanzu suna iya kiyaye sama da 80% na ƙarfinsu ko da a 1200 ℃, kuma suna iya jure matsanancin tasirin 1600 ℃ a cikin ɗan gajeren lokaci. Wannan juriya na zafi yana sa ta fice a yanayin yanayin zafi mai girma, kamar zama ainihin kayan aiki don abubuwan ƙarshen ƙarshen injunan jirgin. A lokaci guda, taurin sa shine na biyu kawai zuwa lu'u-lu'u, tare da taurin Mohs na 9.5. Haɗe tare da kyakkyawan juriya na lalata, yana iya kiyaye kwanciyar hankali a cikin ƙaƙƙarfan mahallin acid da alkali, kuma rayuwar sabis ɗin sa ya zarce kayan ƙarfe na gargajiya.

Silicon carbide abin nadi
A fannin wutar lantarki da kula da thermal, silicon carbide ceramics sun nuna halaye na "mai kunnawa duka". Matsayinsa na thermal yana da sau da yawa na kayan ado na alumina na gargajiya, wanda yayi daidai da shigar da "ƙwararriyar zafi mai kyau" akan na'urorin lantarki, wanda zai iya cire zafi da sauri yayin aikin kayan aiki.
A zamanin yau, kasancewar yumbun silikon carbide ya bazu ko'ina cikin filayen maɓalli da yawa. A cikin sababbin motocin makamashi, an ɓoye shi a cikin tsarin wutar lantarki, yana rage lokacin caji a hankali da kuma tsawaita kewayo; A cikin filin sararin samaniya, kayan aikin turbine da aka yi daga gare ta na iya rage nauyin kayan aiki da kuma ƙara turawa; A cikin masana'anta na semiconductor, ƙananan halayen haɓakar yanayin zafi suna sa ingantattun kayan aiki kamar na'urorin lithography mafi inganci da kwanciyar hankali; Ko da a cikin masana'antar nukiliya, ya zama muhimmin kayan gini don reactors saboda fa'idar juriyar radiation.
A baya, farashi ya kasance wani cikas ga yaduwar yumbu na silicon carbide, amma tare da balaga na fasahar shirye-shirye, farashinsa ya ragu sannu a hankali, kuma masana'antu da yawa sun fara cin gajiyar rabon wannan juyi na kayan. Daga motocin lantarki don tafiya ta yau da kullun zuwa sararin samaniya don bincika sararin samaniya, wannan abin da ba a iya gani ba shine "kashi mai wuya" yana tuki fasahar zuwa gaba mai inganci da abin dogaro a cikin ƙananan maɓalli amma mai ƙarfi.


Lokacin aikawa: Satumba-23-2025
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