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

Mei Zhang

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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.

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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.

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Available 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 concepts: Whiskers, Whisker, Materials science, Sialon, Microstructure, Fabrication, Carbon black, Coal

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Fabrication and Microstructure Analysis of β-SiAlON Whiskers from Coal Gangue by Carbonthermal Reduction-nitridation — Research Paper | ScholarLens