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Abstract: In this study, the influence of silver phase on thermal properties of BaTiO₃/Ag composites are investigated. The Hot Disk TPS 2500 S was used to measure the thermal conductivity and thermal diffusivity of the composites at ambient and elevated temperature up to 175°C. Results found that for a fixed silver composition, the thermal conductivity of the composite remained nearly constant below its tetragonal to cubic transformation temperature (120°C), then decreased and stayed constant up to 175°C. As silver content increased, thermal conductivity of the composite was enhanced due to high contrast between silver and BaTiO₃.

Reference: Composites Part B: Engineering (2016), 90: 287-301

DOI: 10.1016/j.compositesb.2015.12.014