The studies of IR and Raman show that there are Si-N ,Si-H,N-H,Si-O-Si bonds in a Si 3N 4.An analysis of Raman spectra of a Si 3N 4 for thermal treatment in various temperature and atmosphere are made.

• 红外吸收和拉曼光谱研究表明，a－Si3N4纳米粒子中存在Si－N，Si－H，N－H，Si－O－Si键，分析了a－Si3N4纳米粒子在不同的温度和气氛退火后的变化情况。