Development of SHS azide technology of silicon carbide nanopowder

International Conference on Mechanical Engineering, Automation and Control Systems 2016

机械制造;无线电电子学;计算机科学

Titova, Y.V.^1 ; Illarionov, A.Yu.^1 ; Amosov, A.P.^1 ; Maidan, D.A.^1 ; Smetanin, K.S.^2

Samara State Technical University, Molodogvardeyskaya str., 244, Samara

443100, Russia^1

Vyksa Metallurgical Plant, 45, Br. Batashevykh str., Vyksa, Nizhegorogskii region

607060, Russia^2

关键词: Nano powders;    Self propagating high temperature synthesis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/177/1/012115/pdf
DOI  :  10.1088/1757-899X/177/1/012115

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The possibility of increasing the purity and yield of the SiC nanopowder using an intermediate synthesis of silicon nitride (Si3N4) by azide technology of self-propagating high-temperature synthesis based on the use of a powder of sodium azide (NaN3) as a nitriding reagent was investigated. As a result of combustion of the initial mixture of powders '19Si + 6NaN3+ (NH4)2SiF6+ 20', a powdery product was obtained, consisting almost entirely of SiC (about 90%) with an admixture of Si3N4and Si (about 5% each), and representing nanoparticles (80-150 nm) combined into agglomerates with the size up to 50 μm.