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Silicon nitride ceramic ine yakanakisa yemuviri, makemikari, uye michina zvivakwa
Silicon nitride ceramics ine zvakatanhamara zvakanakira: yakaderera density, yakakwirira tembiricha kuramba, self-lubrication, corrosion resistance. Dense Si3N4Ceramics inoratidzawo kusimba kwakanyanya kwekutsemuka, yakakwira modulus zvivakwa uye kuzvidzora, izvo zvinogona kuramba zvakanyanya kune akasiyana kupfeka uye kutsungirira nharaunda dzakaomarara dzinogona kuita kuti zvimwe zvinhu zveceramic zvitsemuke, zviparare kana kudonha, kusanganisira tembiricha yakanyanya, kusiyana kukuru kwekushisa, uye ultra-high vacuum.
Zvikumbiro Zvikuru zveSilicon Nitride Ceramics
Mechanical engineering: Silicon nitride ceramics ine hurema hwakanyanya, yakanakisa kupfeka kuramba uye corrosion kuramba, uye inoshandiswa zvakanyanya mumakanika engineering minda. Inogona kushandiswa kugadzira zvikamu zvakaita semabheya, zvisimbiso, maturusi ekucheka uye nozzles pakupisa kwakanyanya uye nekumhanya, zvichipa kuita kwakanakisa uye hupenyu hurefu.
Indasitiri yemotokari: Nekuda kwekugadzikana kwekushisa kwakanyanya uye kupfeka kuramba kwesilicon nitride ceramics, inoshandiswa mukugadzira zvinhu zveinjini yemotokari. Silicon nitride ceramics inogona kushandiswa kugadzira yakakwirira-inoshanda injini zvikamu semhete dzepiston, silinda liner uye mavharuvhu, zvichibatsira kuvandudza kushanda kwemafuta uye kuderedza kuburitswa.
Aerospace: Huremu huremu, kusimba kwepamusoro uye tembiricha yekupikisa kwesilicon nitride ceramics inovaita zvinhu zvakanakira zvekushandisa aerospace. Inogona kushandiswa kugadzira zvinhu zvakakosha zvakaita sezvikamu zveinjini, turbine blades, thermal yekuzviparadzanisa nevamwe uye spacecraft yekudzivirira kwemafuta kuti isangane nezvinodiwa zvekupisa kwakanyanya, kudzvanywa kwakanyanya uye zvakanyanya nharaunda.
Indasitiri yemakemikari: Silicon nitride ceramics inoshandiswa zvakanyanya muindasitiri yemakemikari nekuda kwekugadzikana kwayo kwemakemikari uye kusagadzikana kwekuora. Silicon nitride ceramics inogona kushandiswa kugadzira makemikari reaction midziyo, catalyst vatakuri, asidhi uye alkali inodzivirira midziyo nemapombi, uye inogona kumira zvinoparadza midhiya uye yakanyanya tembiricha mamiriro.
Optoelectronics: Silicon nitride ceramics ine yakanakisa Optical uye yemagetsi zvivakwa, saka ine yakakosha maapplication mumunda weoptoelectronics. Inogona kushandiswa kugadzira tembiricha yepamusoro uye yakakwirira simba fiber amplifiers, lasers, optical communication devices uye optical Windows ... nezvimwewo, ine yakanakisa optical transmittance uye thermal kugadzikana.
| Test Item | Performance | |
| Density (g/cm3) | 3.2 | |
| Elastic Modulus (GPa) | 320 | |
| Poisson's Ratio | 0.24 | |
| Thermal Conductivity W/(m*k)Mumba Yekupisa | 25 | |
| Coefficient Of Thermal | 2.79 | |
| Kuwedzera (10-6/K) (RT〜500°C) | ||
| Rupture Strength 3 Point (MPa) | 950 | |
| Weibull Modulus | 13.05 | |
| Vickers Kuoma (HV10) Kg/mm | 1490 | |
| Kuputsika Kusimba (KI,IFR) | 6.5~6.6 | |
| Kukura kwePore (gm) | ≤7 | |
| Sanganisa(huwandu/cm) | 25-50 | 2 |
| 50-100 | 0 | |
| 100-200 | 0 | |
| >200 | 0 | |