SHS under pressure: I. Thermal electromotive force arising during combustion of Ti + C mixtures

Investigated was the generation of thermal electromotive force (EMF) during combustion of Ti + C powder mixtures under pressure. Comparison between the EMF curves taken for the mixtures under study and a model Ni/Ti/Ni thermocouple has led to a conclusion that the generation of voltage during combustion of Ti + C mixtures can be identified as the thermal EMF arising in different conductor/semiconductor thermocouples formed between Ni electrodes and starting/end compounds, rather than to formation of ionic species as suggested earlier.