Thermodynamic Characteristics of Rare-Earth Monosilicides at High-Temperatures

 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2012, #09/10
http://www.materials.kiev.ua/article/1093

Abstract

The heat capacity components for some experimentally studied rare-earth monosilicides in the range of middle and high temperatures are analyzed. Patterns of variation in temperatures and enthalpies of melting in a series of compounds from LaSi to LuSi are established. An equation is proposed to determine the heat capacity Cр and high-temperature Cр and enthalpies and entropies of melting are calculated for eight LnSi compounds that are still to be experimentally studied (Ln = Ce, Nd, Pm, Sm, Tb, Dy, Ho, Tm).


ENTHALPY, ENTROPY, HEAT CAPACITY, RARE-EARTH SILICIDES, THERMODYNAMICS