Effect of Cooling Rate on Pore Distribution in Quenched Sodium Borosilicate Glasses
Effect of Cooling Rate on Pore Distribution in Quenched Sodium Borosilicate Glasses
复制标题
冷却速率对淬火硼硅酸钠玻璃孔分布的影响
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
W. Du
中科院分区：
文献类型：
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作者：
T. Yazawa;K. Kuraoka;W. Du
研究了钠硼硅酸盐玻璃在不同冷却速率下急冷后的失稳分相气孔分布。样品的N2吸附-脱附行为表明，样品的孔隙为孔径<1 nm的微孔型。空气淬火的样品（在10 K/s淬火）具有更大的孔体积和比表面积比辊淬火的样品（在106 K/s淬火）。这种效应是由一系列的调幅分解波的振幅下形成的冷却和空气淬火样品中的增加。因此，孔体积和表面积增加，根据本研究中提出的酸浸模型，降低冷却速率。
The distribution of pores, based on spinodal phase separation in sodium borosilicate glasses that were rapidly quenched at different cooling rates, was investigated. The N2 adsorption−desorption behavior of samples shows that the pore is of the micropore type with pore size <1 nm. The air-quenched samples (quenched at 10 K/s) have larger pore volume and surface area than roller-quenched samples (quenched at 106 K/s). This effect is explained by the amplitudes of a series of the spinodal decomposition waves that are formed under cooling and increase in the air-quenched samples. Therefore, the pore volume and surface area increase with decreasing cooling rate according to an acid-leaching model that is proposed in the present investigation.