ABSTRACT
Consequently, information on phase transformation, thermodynamic stabilities, and process modeling of the new materials presently studied for thermoelectricity are crucial.
5.1 Introduction ...................................................................................... 5-1 5.2 Basic Concepts................................................................................... 5-2
5.3 Application of Phase Diagrams in Lead Telluride-Based Materials .............................................................................................5-4 Lead Telluride Material • Binary and Related Ternary Phase Diagrams
5.4 Description of Systems by the Calphad Method.......................... 5-5 General Calphad Technique • Description of Antimonide Systems
5.5 Conclusions...................................................................................... 5-11 References .................................................................................................... 5-12
Moreover, the processes involved in the fabrication of a thermoelectric component lead to other problems:
1. Solidiœcation processes cause segregations in single phases and, depending on the composition of the melt, eutectic precipitations.
