20.500.12556/DiRROS-25332 Linear thermal expansion of ▫$0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$▫ bulk ceramic Linearni temperaturni raztezek volumenske keramike ▫$0.5Ba(Zr_{0.2}Ti_{0.8})O_3-0.5(Ba_{0.7}Ca_{0.3})TiO_3$▫ bulk ceramic We report the linear thermal expansion coefficient of lead-free ferroelectric ceramic barium zirconate titanate - barium calcium titanate 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 (BZT-BCT). The material was prepared by solid-state synthesis and consolidated by sintering at 1450 °C. BZT-BCT crystallizes in the perovskite phase. The microstructure of the ceramic with about 95 % relative density consists of about 10 mm-sized grains. The contact dilatometry of the ceramic specimen reveals the change of slope of the linear thermal expansion curve at 84 °C. This is in good agreement with the peak of the dielectric permittivity versus temperature at about 85 °C indicating the transition from the low-temperature polar ferroelectric phase to a high-temperature nonpolar phase or Curie temperature. The thermal expansion coefficients of the polar tetragonal and nonpolar cubic phases of BZT-BCT are 7.69×10-6 K-1 (40°C – 80°C) and 12.39×10-6 K-1 (100°C – 600°C), respectively. The thermal expansion data are among the material data needed in the design of thin- and thick-film structures for energy-harvesting and energy-storage applications. lead-free ferroelectric ceramic linear thermal expansion brez svinca feroelektrična keramika linearni temperaturni raztezek true false true Strokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale Slovenija Angleški jezik Slovenski jezik Copyright © 2023 by the Authors. Neznano 2026-01-16 10:23:58 2026-01-16 10:23:58 2026-01-17 04:06:05 0000-00-00 00:00:00 2023 0 0 Besedilo v angl.; str. 233-238 no. 4 Vol. 53 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2024-01-09 2024-02-13 0000-00-00 620.1/.2 0352-9045 10.33180/InfMIDEM2023.403 187559427 RAZ_Konsago_Sabi_William_2023.pdf RAZ_Konsago_Sabi_William_2023.pdf 1 349F1DF99204B1E566A996C7719F4E96 83076bec10d59ee3a55de1ed2381d389c69be96d37585dc0551ccab5c41ddfc6 8fc617ec-f2bd-11f0-a15d-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=38318 Institut Jožef Stefan 0 0 0