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HomeKey Engineering MaterialsKey Engineering Materials Vol. 726Flame Temperature Distribution and SiO2 Particles...

Flame Temperature Distribution and SiO₂ Particles Distribution in Oxyhydrogen Flame

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Abstract:

In the production process of synthetic silica glass, SiCl₄ as precursor is imported in oxyhydrogen flame, SiO₂ particles generate and distribute with different states along the flame. The flame temperature and the distance above the burner are important factors to affect the particle diameters and morphologies. The 2D distribution of flame temperature was measured using sodium line-reversal method. The diameters and morphologies of SiO₂ particles were analyzed by transmission electron microscopy (TEM) at 50mm, 100mm, 200mm, and 300mm above the burner. The results show that the flame temperature ranges from 2130°C to 2320°C, and the average diameter of SiO₂ spherical particles increases from 50nm to 105nm as the distance increasing from 50mm to 200mm. The optimum deposition distance was discussed.

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Periodical:

Key Engineering Materials (Volume 726)

Pages:

424-428

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.726.424

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Online since:

January 2017

Authors:

Lei Wang, Hong Jie Wang, Hui Wang, Lan Jian Nei, Fei Xiang Lui, Xiao Hui Yang

Keywords:

Flame Temperature, SiO₂ Particles, Synthetic Silica Glass

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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