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采用煤矸石为原料合成β-SiAlON晶须及其显微结构研究 被引量:3

Fabrication and Microstructure Analysis of β-SiAlON Whiskers from Coal Gangue by Carbonthermal Reduction-nitridation
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摘要 以煤矸石和碳黑为主要原料,在1800K下碳热还原氮化合成了纯度较高、含有大量晶须的β-SiAlON材料。FESEM照片表明β-SiAlON晶须多为细长柱状,直径120~220nm,长度1.5~5μm,晶须生长机制由VLS(vapor-liquid-solid)机制和VS(vapor-solid)机制组成。 β-SiAlON with a lot of slender cylindrical whiskers,has been synthesized by carbonthermal reduction-nitridation method form Coal gangue and carbon black at 1800 K. FESEM photographs showed that diameter of β-SiAlON whisker is 120-220 nm and length in the majority is about 1.5-5 μm. The VLS (vapor-liquid-solid) and VS (vapor-solid) mechanisms have been adopted to explain the behavior of whiskers growth.
出处 《硅酸盐通报》 CAS CSCD 北大核心 2010年第1期167-170,共4页 Bulletin of the Chinese Ceramic Society
基金 国家科技支撑计划(2006BAC21B02-1 2007BAB24B03) 国家自然科学基金重点基金资助项目(50332010)资助
关键词 β-SiAlON晶须 碳热还原氮化 显微结构 生长机制 β-SiAlON whiskers CRN microscopic morphology growth mechanism
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参考文献13

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