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| 复杂硅酸盐矿物Gibbs自由能和焓的一种近似计算法 | |
| 引用本文： | 李小斌,李永芳,刘祥民,刘桂华,彭志宏,翟玉春.复杂硅酸盐矿物Gibbs自由能和焓的一种近似计算法[J].硅酸盐学报,2001,29(3):232-237. |
| 作者姓名： | 李小斌 李永芳 刘祥民 刘桂华 彭志宏 翟玉春 |
| 作者单位： | 1. 中南工业大学冶金科学与工程系, 2. 中国长城铝业公司中州铝厂, 3. 东北大学材料与冶金学院, |
| 基金项目： | 国家重点基础研究发展规划 973资助项目 !(G19990 64 90 1-4 ) |
| 摘 要： | 在前人工作的基础上，提出了计算复杂硅酸盐矿物热力学数据的一种简单近似计算方法，即将复杂硅酸盐看作由若干酸性、碱性氧化物化合而成，复杂硅酸盐的Gibbs自由能（或焓）近似等于各氧化物Gibbs自由能（或焓）之和再加入酸性、碱性氧化物之间化合的反应自由能（或反应焓）。该方法计算简便，大部分情况下相对误差小于2％，能够计算任意温度下复杂硅酸盐矿物的Gibbs自由能和焓。 |
| 关 键 词： | 复杂硅酸盐 吉布斯自由能 焓 近似计算方法 |
| 文章编号： | 0454-5648(2001)03-0232-06 |
| 修稿时间： | 2000年11月2日 |
A SIMPLE METHOD OF ESTIMATION OF GIBBS FREE ENERGY AND ENTHALPY OF COMPLICATE SILICATES |
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| Li Xiaobin ,Li Yongfang ,Liu Xiangmin ,Liu Guihua ,Peng Zhihong ,Zhai Yuchun.A SIMPLE METHOD OF ESTIMATION OF GIBBS FREE ENERGY AND ENTHALPY OF COMPLICATE SILICATES[J].Journal of The Chinese Ceramic Society,2001,29(3):232-237. | |
| Authors: | Li Xiaobin Li Yongfang Liu Xiangmin Liu Guihua Peng Zhihong Zhai Yuchun |
| Affiliation: | Li Xiaobin 1,Li Yongfang 1,Liu Xiangmin 2,Liu Guihua 1,Peng Zhihong 1,Zhai Yuchun 3 |
| Abstract: | A new simple method to estimate the Gibbs free energy and enthalpy of complicate silicates was introduced in this paper. It is assumed that the complicate silicates are made up of acidic oxides and alkaline oxides. And the most alkaline oxide always firstly reacts with the most acidic oxide. Then the Gibbs free energy (or enthalpy) of complicate silicates approximately equals the sum of the Gibbs free energy (or enthalpy) of all oxides and the free energy of reactions (or enthalpy of reaction) between acidic oxides and alkaline oxides. The method is very simple without any estimated parameters. The Gibbs free energy and enthalpy at any temperature can be calculated. In most cases, the error is less than 2%. |
| Keywords: | complicate silicate Gibbs free energy enthalpy estimate |
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