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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Thermophysical and thermodynamic properties of actinide mononitrides and their solid solutions
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Thermophysical and thermodynamic properties of actinide mononitrides and their solid solutions

机译：nit系元素单氮化物的热物理和热力学性质及其固溶体

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The recent investigations on the thermophysical and thermodynamic properties of actinide mononitrides, which are essential for the development of nitride fuel, are described. The thermal conductivities of UN, NpN and PuN are found to have a tendency to increase gradually with temperature, while to decrease with the atomic number of the actinide element component because of the decrease of electronic contribution. The solid solutions of the mononitrides show a temperature dependence similar to those of two component nitrides each and possess intermediate thermal conductivity values. Knudsen-effusion mass spectrometric measurements of UN, NpN, and PuN have been performed. Predominant vapor species observed were only elemental metals except nitrogen gas. It is considered that UN and NpN form liquid phases and show the partial pressures of metal gas species close to those over pure respective metals, while PuN evaporates congruently. (C) 1998 Elsevier Science S.A. [References: 38]
机译：描述了对act系氮化物单氮化物的热物理和热力学性质的最新研究，这对开发氮化物燃料至关重要。发现UN，NpN和PuN的热导率具有随温度逐渐增加的趋势，而由于电子贡献的降低，随with系元素成分的原子数而降低。单氮化物的固溶体显示出与各自的两种组分氮化物相似的温度依赖性，并且具有中等的导热率值。已对UN，NpN和PuN进行了Knudsen扩散质谱测量。观察到的主要蒸汽物质仅是除氮气以外的元素金属。据认为，UN和NpN形成液相，显示出与纯金属上的气体接近的金属气体分压，而PuN则完全蒸发。 （C）1998 Elsevier Science S.A. [参考：38]

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