Rapid silicon carbide micro-crystal growth by high power CO2 laser

Haonan Zhou; Chang-Jiang Chen; Wenbin Zhu; Ju-Hung Chao; Stuart (Shizhuo) Yin

doi:10.1117/12.2276513

23 August 2017 Rapid silicon carbide micro-crystal growth by high power CO₂ laser

Haonan Zhou, Chang-Jiang Chen, Wenbin Zhu, Ju-Hung Chao, Stuart (Shizhuo) Yin

Proceedings Volume 10382, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI; 103820L (2017) https://doi.org/10.1117/12.2276513
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

This paper presents an ultra-fast growth of silicon carbide crystal with the size up to 50 μm from SiC nanopowders. By using a CO₂ laser with a power of 30W to heat the silicon carbide nanopowders in a vacuum chamber, the nanopowders tends to congregate together to form larger particles first. Following the slow cooling process, the congregate formation would further transform to final SiC micro-crystals. The two types of final products grown from quenching process and slow cooling process were analyzed by SEM. The lattice structure of final SiC micro-crystal was determined to be hexagonal structure according to the XRD analysis.

Citation Download Citation

Haonan Zhou, Chang-Jiang Chen, Wenbin Zhu, Ju-Hung Chao, and Stuart (Shizhuo) Yin "Rapid silicon carbide micro-crystal growth by high power CO₂ laser", Proc. SPIE 10382, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI, 103820L (23 August 2017); https://doi.org/10.1117/12.2276513

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