| 金属间化合物的比热容估算模型 |
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| 引用本文： | 赵定国, 郭培民, 赵沛. 金属间化合物的比热容估算模型[J]. 工程科学学报, 2010, 32(5): 565-569. DOI: 10.13374/j.issn1001-053x.2010.05.016 |
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| 作者姓名： | 赵定国 郭培民 赵沛 |
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| 作者单位： | 1.钢铁研究总院先进钢铁流程及材料国家重点实验室, 北京 100081 |
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| 基金项目： | "十一五"国家科技支撑计划资助项目 |
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| 摘 要： | 在分析已有的热力学数据基础上,建立了估算二元金属间化合物比热容的双参数模型.用此模型可以估算由简单金属形成的二元金属间化合物的比热容,涉及Fe、Si、Nb、Ti、Cu、Co和Mg等多个体系.估算了132个已知金属间化合物AlCa、AlCo、CrNi、FeTi、FeSi、FeNb和MoSi等的比热容,平均误差为2.74J·mol-1·K-1,标准差为3.84J·mol-1·K-1.用双参数模型估算的比热容精度高,其估算误差小于离子束缚模型.
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| 关 键 词： | 金属间化合物 比热容 双参数模型 离子束缚模型 估算 |
| 收稿时间： | 2009-09-08 |
Estimating model of specific heat of intermetallics |
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| ZHAO Ding-guo, GUO Pei-min, ZHAO Pei. Estimating model of specific heat of intermetallics[J]. Chinese Journal of Engineering, 2010, 32(5): 565-569. DOI: 10.13374/j.issn1001-053x.2010.05.016 |
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| Authors: | ZHAO Ding-guo GUO Pei-min ZHAO Pei |
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| Affiliation: | 1.State Key Laboratory for Advanced Iron and Steel Processes and Materials, Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | Based on an analysis of existing thermodynamic data, a two-parameter model for estimating the specific heat of a dual intermetallic is developed. It can estimate the specific heats of dual intermetallics composed of simple metals involving Fe, Si, Nb, Ti, Cu, Co, Mg, etc. The specific heats of 132 intermetallics are estimated, such as AlCa, AlCo, CrNi, FeTi, FeSi, FeNb, and MoSi. It is found that the average error of specific heat is about 2.74J·mol-1·K-1 and the standard deviation is 3.84J·mol-1·K-1. The precision of standard entropy estimated by the two-parameter model is higher than that estimated by the ion binding model. |
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| Keywords: | intermetallics specific heat two-parameter model ion-binding estimation |
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