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金属的升华热Ls和沸点T_f是研究金属结合性能的重要标度,对了解和讨论金属的内聚力有很大参考价值。以往,很多作者都引用下列的Trouton经验公式Ls=0.0235Tr来表示二者间的关系,式中Ls单位是千卡每克原子,T单位是绝对温度。这一关系式沿用至今,不仅出现在各种科技文献中,用来作为估算某些金属未径测定的升华热值的依据(见文末所引文献[1]、[2]、[3]、[4])而且在一些工具书中,也广为引用(如所引文献[5]、[6]等)。
Metals sublimation heat Ls and boiling point T_f is an important scale for studying the bonding properties of metals, and has great reference value for understanding and discussing the cohesion of metals. In the past, many authors have cited the following Trouton empirical formula Ls = 0.0235Tr to represent the relationship between the two, where Ls units are kilocalories per gram atom and T units are absolute temperatures. This relation has been used up till now not only in various scientific and technical documents but also as a basis for estimating the sublimation calorific value of certain metal diameters (see references [1], [2], [3], [4]) and is widely cited in some of the tools (eg cited citations [5], [6], etc.).