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作 者:吴贤熙[1] 蒋洪石[1] 吴松[1] 朱维东[1]
出 处:《硅酸盐学报》2016年第8期1235-1240,共6页Journal of The Chinese Ceramic Society
基 金:国家自然科学基金项目(2136609)
摘 要:将水合硫铝酸钙看作由若干酸性、碱性氧化物化合而成,对含氧酸盐水合硫铝酸钙的Gibbs自由能进行计算,并通过实验对计算结果进行验证。结果表明:水合硫铝酸钙的Gibbs自由能近似等于各氧化物的Gibbs自由能之和再加上酸性、碱性氧化物之间化合的反应自由能。实验结果与计算的Gibbs自由能判断一致。该方法可以计算任意温度下水合硫铝酸钙的Gibbs自由能。Gibbs free energies of calcium aluminate sulfate hydrates were calculated when they are assumed to form from the reactions between several acidic and alkaline oxides. The calculated results were verified by the corresponding experiments. The results show that the energies are approximately equal to the sum of free energies of oxides and free energies of reactions between acidic and alkaline oxides. The experimental results are consistent with calculated Gibbs free energies. The method used to calculate the Gibbs free energies of the calcium aluminate sulfate hydrates can be used at different temperatures.
分 类 号:TF821[冶金工程—有色金属冶金]
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