Empirical Relation of Melting Temperatures of CsCl-Type Intermetallic Compounds to Their Cohesive Energies

详细信息    查看全文

• 作者：Chonghe Li and Ping Wu
• 刊名：Chemistry of Materials
• 出版年：2002
• 出版时间：November 2002
• 年：2002
• 卷：14
• 期：11
• 页码：4833 - 4836
• 全文大小：65K
• 年卷期：v.14,no.11(November 2002)
• ISSN：1520-5002

文摘

An empirical linear relationship between melting temperatures and cohesive energies,which was first derived on the basis of the universal binding energy theory and the Debyemodel, is reexamined by using 78 pure element solids. The results show that, although ageneral trend is observed, many elements deviated far from this regularity. However, it isfurther found that this empirical relationship works very well for element solids that havea common crystal structure (e.g., bcc). Similar behaviors are observed among intermetalliccompounds of the same structure. For CsCl-type intermetallic compounds the obtained linearrelationship is T_m = 0.030E/k_B, which may be applied to predict the melting point ofunknown alloys.