Muzana remakore rechi21, nekukura kwesainzi netekinoroji, ruzivo, simba, zvinhu, mainjiniya ezvebhayoloji zvave mbiru ina dzekuvandudzwa kwekubudirira kwevanhu nhasi, silicon carbide nekuda kwehunhu hwakagadzikana hwemakemikari, conductivity yepamusoro yekupisa, coefficient yekuwedzera kwekupisa yediki, density diki, kuramba kupfeka kwakanaka, kuomarara kwakanyanya, simba remakanika rakawanda, kuramba ngura kwemakemikari nezvimwe zvinhu, kukura nekukurumidza mumunda wezvinhu, Inoshandiswa zvakanyanya mumabheringi ebhora receramic, mavharuvhu, zvinhu zve semiconductor, gyro, chiridzwa chekuyera, aerospace nedzimwe nzvimbo.
Zvigadzirwa zvesimbi zvesilicon carbide zvakagadzirwa kubvira kuma1960. Kare, silicon carbide yainyanya kushandiswa mukugadzira zvinhu zvekukuya nekugadzira zvinhu zvinoramba kushanda. Nyika dzese pasi rose dzinokoshesa zvikuru kuvandudzwa kwezvinhu zvesimbi zvemhando yepamusoro, uye ikozvino hazvigutsikane chete nekugadzirwa kwesimbi dzesimbi dzesilicon carbide, kugadzirwa kwesimbi dzesimbi dzemhando yepamusoro kuri kukura nekukurumidza, kunyanya munyika dzakabudirira. Mumakore achangopfuura, zviumbwa zvesimbi zvemhando yepamusoro zvakavakirwa paSIC ceramics zvakaonekwa imwe mushure meimwe, zvichivandudza kusimba kwezvinhu zvemonomer. Zvigadzirwa zvesimbi zvesilicon carbide zvinonyanya kushandiswa, kureva, zviumbwa zvesimbi zvinoshanda, zvinhu zvesimbi zvinoramba kushanda zvakanaka, zvinhu zvinobvisa simba uye zvinhu zvesimbi.
Silicon carbide ceramics ine simba rakanaka rekudzivirira kupfeka
Zvigadzirwa zvesimbi zvesilicon carbide zvakadzidzwa uye zvakaongororwa. Kusapera kwesimbi dzesilicon carbide chigadzirwa ichi kwakaenzana nesimbi yemanganese ka266, yakaenzana nesimbi yakakwira yechromium ka1741. Kusapera kwakanaka kwazvo. Zvinogona kutichengetedza mari yakawanda. Zvigadzirwa zvesimbi zvesilicon carbide zvinogona kushandiswa nguva dzose kwemakore anopfuura gumi.
Silicon carbide ceramics ine simba rakawanda, kuomarara kwakanyanya uye huremu hwakareruka
Semhando itsva yezvinhu, kushandiswa kwesilicon carbide ceramics, simba rechigadzirwa ichi rakakwira zvikuru, kuomarara kwakanyanya, huremu hwacho hwakarerukawo, silicon carbide ceramics yakadaro iri kushandiswa, kuiswa uye kutsiva zviri pamusoro apa zvichave nyore.
Rusvingo rwemukati rwesilicon carbide ceramic rwakatsetseka uye haruvhari upfu
Zvigadzirwa zvesimbi zvesilicon carbide zvinopiswa mushure mekudziya kwakanyanya, saka chimiro chesimbi dzesilicon carbide chakakora, pamusoro pacho pakanyatsotsvedzerera, runako rwekushandisa ruchava rwakanaka, saka kana zvikashandiswa mumhuri, runako ruchava rwakanaka.
Mutengo wesimbi dzesilicon carbide wakaderera
Mutengo wekugadzira silicon carbide ceramics pachawo wakaderera, saka hatifanirwe kutenga mutengo wesilicon carbide ceramics unodhura zvakanyanya, saka kumhuri yedu, asiwo kunogona kuchengetedza mari yakawanda.
Kushandiswa kwesimbi yesilicon carbide yeceramic:
Bhora resimbi reSilicon carbide
Bhara resimbi reSilicon carbide rine hunhu hwakanaka hwemakanika, rinodzivisa oxidation zvakanyanya, rinodzivisa kukwesha zvakanyanya uye rinoita kuti rive ne friction coefficient yakaderera. Bhara resimbi reSilicon carbide rine simba rekupisa rakakwirira, zvinhu zvesimbi ...
Zvinhu zvakasanganiswa zvesilicon carbide
Silicon carbide matrix composites (SiC-CMC) yave ichishandiswa zvakanyanya mumunda wendege nekuda kwekupisa kwakanyanya nekuda kwekusimba kwayo, simba rayo guru uye kuramba kwayo kuoxidation kwakanaka. Maitiro ekugadzirira SiC-CMC anosanganisira kugadzira fiber, kugadzirisa kupisa kwakanyanya, mesophase coating, matrix densification uye mushure mekurapa. Carbon fiber yakasimba kwazvo ine simba rayo guru uye kusimba kwakanaka, uye muviri wakagadzirwa nayo une hunhu hwakanaka hwemakanika.
Kuputira mesophase (ndiko kuti, tekinoroji yekubatanidza) ndiyo tekinoroji huru mukugadzirira, kugadzirira nzira dzekuvhara mesophase dzinosanganisira makemikari emhepo inoputika (CVI), makemikari emhepo inoputika (CVD), nzira yesol-sol (Sol-gcl), nzira yekuisa polymer impregnation cracking (PLP), nzira yakakodzera kwazvo pakugadzirira silicon carbide matrix composites ndiyo nzira yeCVI uye nzira yePIP.
Zvinhu zvekufukidza pakati pechiso zvinosanganisira pyrolytic carbon, boron nitride uye boron carbide, pakati pazvo boron carbide semhando ye oxidation resistance interfacial coating yave ichitariswa zvakanyanya. SiC-CMC, iyo inowanzo shandiswa mumamiriro e oxidation kwenguva yakareba, inodawo kurapwa kwe oxidation resistance, kureva kuti, layer ye dense silicon carbide ine ukobvu hweinenge 100μm inoiswa pamusoro pechigadzirwa neCVD process kuti ivandudze high-temperature oxidation resistance yayo.
Nguva yekutumira: Kukadzi-14-2023