Silicon nitride-cov khoom xyaw tshuaj lom neeg Si3N4. Cov hmoov siv lead ua dawb; yaj kis 1900 ℃, ntom ntom 3.44 g / cm (20 ℃); muaj ob qho sib txawv: α hom yog hexagonal ze-ntim cov qauv; β hom yog crystal-like structure. Silicon nitride yog grey thaum muaj impurities lossis ntau silicon.
Silicon nitride nyuaj rau kev sib cuam tshuam nrog dej; nws maj mam hydrolyzes nyob rau hauv cov tshuaj muaj zog acid daws los tsim ammonium ntsev thiab silicon dioxide; nws yog yooj yim soluble hauv hydrofluoric acid, thiab nws tsis ua haujlwm nrog dilute acid.
Cov kua alkali muaj zog yuav maj mam corrode silicon nitride, thiab molten muaj zog alkali tuaj yeem hloov sai silicon nitride mus rau silicate thiab ammonia. Silicon nitride tuaj yeem txo qhov kev hloov pauv hlau (saib cov hloov pauv) oxide, lead oxide, zinc oxide thiab tin dioxide siab dua 600 ℃, thiab tso cov pa nitrogen oxide thiab nitrogen dioxide.
