Silicon nitride ntawm 600 ° C tuaj yeem txo qhov kev hloov pauv hlau (saib keeb kwm kev hloov pauv) oxide, lead oxide, zinc oxide thiab tin dioxide, thiab tso tawm nitrogen oxides thiab nitrogen dioxide.
Lub sijhawm tam sim no, cov qauv siv feem ntau ntawm cov khoom siv tawv tawv ntsuas cov txheej txheem yog ob-txheej cantilever nqaj ntsuas, peb-taw tes khoov lossis plaub-taw tes khoov xeem, kuaj indentation, thiab lwm yam. Oian txhim kho txoj kev ncab txoj kev, thiab ntsuas lub hauv paus theoretical ntawm txheej matrix ciam los ntawm ntsuas qhov kev cuam tshuam tseem ceeb rau lub zog tawm. Peb-txoj cai khoov rau txoj kev ntsuas elastic modulus Hauv txoj kev ntsuas qhov txawv ntawm cov txheej, txheej peb txoj hlua khoov siv feem ntau siv, thiab ob qho qauv coj mus kuaj thiab ib leeg-txheej txheej coj los siv tau.
Si3N4 muaj ob lub qauv siv lead ua, ib qho yog α-Si3N4, cov koob xws li koob yog dawb lossis tawm-dawb, thiab lwm qhov yog β-Si3N4. Cov xim muaj xim tsaus nti, thiab cov ntom ntom polyhedron lossis luv prism yog hexagonal. Lub kaw lus siv hluav taws xob yog lub ntsej muag sib txuas los ntawm [SiN4] 4-tetrahedrons sib koom lub apex kaum sab xis.
