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  5. Synthesis of SiC/Si3N4 nano-composite powders by soft-mechanochemical annealing

Synthesis of SiC/Si3N4 nano-composite powders by soft-mechanochemical annealing

来源 :International Conference on Nanoscience & Technology,China 2 | 被引量 : 0次 | 上传用户：sdfg444
【摘 要】
：
SiC/Si3N4 nano-composite powders were obtained by a process that combines the mechanochemical of carbon and silicon powders at room temperature through high-energy milling with an isothermal annealing
【作 者】
：
Youjun Lu Zhidong Pan Yanmin Wang Hongfang Shen Yong Jiang 
【机 构】
：
College of Materials Science & Engineering,Beifang University of Nationalities,750021,Yinchuan,China
【出 处】
：
International Conference on Nanoscience & Technology,China 2
【发表日期】
：
2013年3期
【关键词】
：
Nanoparticle Soft-mechanochemistry Composite powders 
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　　SiC/Si3N4 nano-composite powders were obtained by a process that combines the mechanochemical of carbon and silicon powders at room temperature through high-energy milling with an isothermal annealing in a nitrogen atmosphere to complete the synthetic reaction.Soft-mechanochemistry(SMC) has allowed us to complete the synthesis at 1300 ℃ only.The β-Si3N4 content in the final powder tends to increase as the milling time is prolonged.The microstructure of the SiC/Si3N4 composite powders has a bimodal character composed of β-SiC and β-Si3N4 grains.Diameters of nano-composite particle from 100~200 nm.
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