羟基含量对全氧燃烧浮法玻璃结构弛豫的影响

doi:10.11896/j.issn.1005-023X.2018.12.023

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Abstract The present work investigated the influence of hydroxyl content on structural relaxation in oxy-fuel combustion float glass by means of infrared spectroscopy and dynamic mechanical analysis (DMA). An α-relaxation similar to metallic glass at above 540 ℃ was observed in the oxy-fuel combustion float glass. The apparent activation energy (obtained by fitting Arrhenius equation) values for oxy-fuel combustion float glass with 2∶1 atmosphere ratio (H₂O/CO₂ gas volume ratio), oxy-fuel combustion float glass with 1∶1 atmosphere ratio and air-fuel combustion float glass are 4.74 eV,5.82 eV and 7.50 eV, respectively. Meanwhile, the configurational entropy (obtained by fitting the configurational entropy loss law) values of oxy-fuel combustion float glass are higher than that of air-fuel combustion float glass, in which atmosphere ratio of 2∶1 corresponds to a greater configurational entropy compared to atmosphere ratio of 1∶1. This connoted the more disordered internal structure of oxy-fuel combustion float glass compared to air-fuel combustion float glass, as well as the disordering effect of the water vapor in the furnace onto the internal structure of oxy-fuel combustion float glass, and thereby confirming that the hydroxyl content exerts a certain influence on structural relaxation of the oxy-fuel combustion float glass.

Key words： oxy-fuel combustion float glass hydroxyl content apparent activation energy configurational entropy

Published: 20 July 2018

CLC number:	TB321
	O411.1

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	Articles by authors
	ZHAN Weitao
	HE Jianxiong
	WANG Yizheng
	JIANG Hong

Cite this article:

ZHAN Weitao,HE Jianxiong,WANG Yizheng, et al. Influence of Hydroxyl Content on Structural Relaxation in Oxy-fuel Combustion Float Glass[J]. Materials Reports, 2018, 32(12): 2062-2065.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.12.023 OR http://www.mater-rep.com/EN/Y2018/V32/I12/2062

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