Year: 2006
Type: article
Abstract: This paper presents thermoelectric properties of thick-film composites in relation to their potential use as power microgenerators. Several different combinations of composites were used to create thermopiles. One track of each thermocouple was made of PdAg or Pt and was the reference track and the second one of the tested material. After preliminary tests five composites with low resistance and adequate Seebeck coefficient were chosen (Ag, Ag+RuO2 and three kinds of RuO2). We measured the Thermoelectric Force, ET = f(T) and internal resistance Ri = f(T) characteristics over the temperature range 293 to 493 K. PdAg/Ag thermocouples have nearly two orders of magnitude higher output electrical power than the others. The change in values of electrical parameters of thermopiles after long-term ageing processes was also investigated.
Authors: Piotr Markowski, Andrzej Dziedzic
Institution: Wrocław University of Science and Technology
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W2339608398