Silicon carbide ceramic ndeye ceramic material ine silicon carbide (SiC) sechikamu chikuru, chine simba rakawanda, kupisa kwekushisa kwepamusoro uye kusagadzikana kwekuora, uye inoshandiswa zvakanyanya muminda yeindasitiri.
Maitiro ekugadzira anonyanya kusanganisira kupisa kudzvanya sintering, kusadzvanywa sintering, reaction sintering nedzimwe nzira, kuburikidza nekudzora tembiricha yekupisa (1450-2450 dhigirii) uye nekuwedzera zvinowedzerwa (senge boron carbide, alumina) kuti uwane densification.
Products Description
Iyo reaction sintered silicon carbide ceramic zvigadzirwa zvine zvinotevera zvakatanhamara maficha:
Yakanakisa michina zvivakwa: Kunyanya kuomarara (Mohs chikero 9.0-9.5 padhuze neicho chedhaimondi), ine simba rekukotama re400-600 megapascals, uye kuchengetedza simba rakakura kunyangwe patembiricha ye1600 degree.
Kunyanya kupisa kwemafuta: High thermal conductivity (120 - 220 W/m·K), yakaderera thermal yekuwedzera coefficient (inenge 4.0×10 ^{-6}/K), inokwanisa kushingirira tembiricha yepamusoro kusvika 1400 - 1600 dhigirii, uye kupikisa kwakasimba kuhutachiwana hwekushisa (tembiricha musiyano unodarika 800 degree).
Kugadzikana kwekemikari kwakatanhamara: Inoshingirira kune acid uye alkali corrosion, ine kusimba kweoxidation kwakasimba pane ese asiri-ceramic ceramics, anoenderana nekuora uye{1}}tembiricha yepamusoro.
Kugara uye kuita zvakasiyana-siyana: Kusimba kwacho kunopfuura kagumi pane zvemakeramiki akajairwa, uye zvakare ine semiconductor zvivakwa (kusiyana neakajairwa insulating ceramics), zvichiita kuti ive yakakodzera kune yakanyanyisa kushanda mamiriro.
Silicon carbide ceramics, nekuda kwekuoma kwavo kwepamusoro, kupisa kwekushisa kwakanyanya, corrosion resistance, high thermal conductivity uye yakanakisa kupfeka kuramba, inoita basa rakakosha munzvimbo dzakasiyana dzeindasitiri. Zvikumbiro zvikuru ndezvinotevera:
I. High Temperature uye Metallurgical Indasitiri
Mafuro ekupisa-akakwirira: Kugadzira mafito emoto, macrucibles, maburi emoto, zvinhu zvinotsigira muchoto, nezvimwewo, zvinokwanisa kushanda zvakatsiga patembiricha inodarika 1600 degrees .
Refractory midziyo: Inoshandiswa kuputika marani echoto, zvidhinha zvinoramba, uye mabhodhi ekudzivirira, kudzivirira kukukurwa nesimbi dzakanyungudutswa uye kuwedzera zvakanyanya hupenyu hwemidziyo.
Metal smelting: Sezvinoita deoxidizer kusimudzira kuchena kwemvura yesimbi, kana kugadzirwa kuenderera mberi nekukandira mhete, thermocouple ekudzivirira machubhu, optimize kunyungudutsa zvakanaka.
2. Mechanical Manufacturing uye Wear Resistance Field
Zvisimbiso zvinoumba: Mechanical yekuisa chisimbiso mhete dzinoshandiswa mumapombi emakemikari nemapombi emvura, ine kusagadzika kwekuora makumi emakumi emazana emasimbi akajairwa, achivandudza zvakanyanya hupenyu hwesevhisi.
Bearings nemidziyo yekucheka: High-mabhengi anomhanya, njanji, uye maturusi ekucheka akavharidzirwa, akakodzera-tembiricha yepamusoro uye{2}}pamusoro pemamiriro ezvinhu, kuderedza kusakara kwemidziyo.
Pfeka-pombi dzisingadziviriri: Mapombi ekufambisa emugodhi, maemeller lining, asingapfeki zvakapetwa ka5-20 pane zvesimbi yakakandwa.
3. Semiconductor uye Electronic Industry
Semiconductor midziyo: Kukuya madhisiki, zvigadziriso zvewafer processing, zvisingaenderane nekupisa kwakanyanya uye kusvibiswa kwemakemikari, kuve nechokwadi chekugadzirisa.
Masisitimu ekubvisa kupisa: Magetsi anobvisa kupisa kune-midziyo yemagetsi yakakwira (yakadai seIGBT, LED), ine mhepo inodziya ye270 W/m·K, inonatsiridza kudzima kupisa.
Electronic components: Magetsi, -sensitive resistors, etc., magetsi anoshandisa hunhu hwawo husina mutsara.
4. Kemikari uye Environmental Protection Field
Kuora-mudziyo usingadziviriki: Mavharuvhu, marekita linings, pombi, anokwanisa kumira asidhi yakasimba nemabhesi akasimba (se98% concentrated sulfuric acid).
Mashandisirwo ezvakatipoteredza: Masefa eutsi anokwirisa-sefa (sekupisa marara), anotakura huchi muzinga redongo remoto wemotikari.
Zvikamu zvesimba: Fuel cell connectors, solar thermal power absorption heaters, ine tembiricha yekudzivirira inopfuura 1000 degree.
5. Special uye Emerging Fields
Indasitiri yeNuclear: Mafuta emafuta eNukireya anovhara machubhu, midziyo yemarara, inopesana neutron irradiation uye tembiricha yepamusoro.
Bulletproof zvinhu: Composite bulletproof ceramics kuburikidza nekuomesera kurapwa, nekuomarara kwepamusoro uye kushomeka (3.10-3.15 g/cm³).
Photovoltaic indasitiri: Zvikamu zvekutakura polysilicon etching zvinwiwa, kugadzirisa kupera kwepamusoro uye matambudziko akasimba ekuora.
Silicon carbide ceramics iri kutyaira tekinoroji musimba idzva (hydrogen fuel cells, photovoltaics), semiconductors, nepamusoro-midziyo yekugumisa, uye ndizvo zvinonyanya kufarirwa mumamiriro ezvinhu akanyanyisa zvakadai sekushisa kwakanyanya, corrosion, uye kupfeka kwakanyanya.
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