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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2010, Vol. 29 ›› Issue (1): 167-170.

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Fabrication and Microstructure Analysis of β-SiAlON Whiskers from Coal Gangue by Carbonthermal Reduction-nitridation

PENG Ben;YUE Chang-sheng;LU Xuan;GUO Min;ZHANG Mei   

  • Online:2010-02-15 Published:2021-01-18

Abstract: 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.

Key words: β-SiAlON whiskers;CRN;microscopic morphology;growth mechanism

CLC Number: