Siab hardness thiab siab zog
Lub hardness ntawm silicon nitride ntawm mohs nplai ncav cuag 9 thiab siab dua ntawm cov vickers ntawm lub vickers ntawm cov vickers nplai yog 1600 hv, uas yog ze rau kev tawv tawv ntawm qee cov ntaub ntawv superhard. Lub zog compressive ntawm silicon nitride kuj yog siab heev, feem ntau ncav tau ntau dua 1 GPA, cia nws ua kom pom kev zoo hnav thiab cuam tshuam rau hauv cov khoom siv tshuab. Nyob rau hauv ntau qhov kev kub ceev thiab kev pab cuam lub neej zoo tshaj plaws ntawm silicon nitride seem yog qhov yooj yim rau cov khoom siv hlau, thiab nws tsis haum rau cov khoom tseem ceeb uas yuav tsum tau nyob ruaj khov rau lub sijhawm ntev.
BRACTENE HWJ HWJ
Fracture shofness - yog lub peev xwm ntawm cov khoom siv kom tiv taus pob txha lossis chaw thau khoom nrawm. Cov khoom siv tej hub feem ntau tau tawg, tab sis cov pob txha lov ntawm silicon nitride mus txog ntawm cov ntaub ntawv ceramic zoo li Alumina (txog 3 MPA-m¹ / ²). Cov xeeb ceem no ua rau silicon nitride tiv taus huab, cia nws tiv thaiv cov khoom loj loj thiab yog ib qho khoom siv zoo rau kev tsim cov cuab yeej thiab cov khoom siv hnyav.
Compressive thiab khoov rau lub zog
Lub zog compressive ntawm silicon nitride tuaj yeem ncav cuag 3000 MPa thiab Flexural zog {}} MPa siab dua li cov ntaub ntawv ceramic ntau tshaj plaws. Kev sib xyaw ua ke ntawm compressive thiab Flexural zog tso cai rau Silicon Nitride nyob rau hauv zus cov kabmob, yog li nws muaj qhov zoo heev ntawm kev ntxhov siab, yog li lwm yam khoom siv uas yuav tsum qhib siab. Piv nrog tsoos hlau bearings, silicon nitride bearings tuaj yeem tswj tau kev ua tau zoo thiab muaj kev ua haujlwm hnyav, thiab ncua kev pabcuam lub neej ntawm cov cuab yeej siv.