A technical paper titled “Understanding surfaces and interfaces in nanocomposites of silicone and barium titanate through experiments and modeling” was published by researchers at Harvey Mudd College, Sandia National Lab and Air Force Research Laboratory.
Abstract
“Barium titanate (BTO) is a ferroelectric perovskite used in electronics and energy storage systems because of its high dielectric constant. Decreasing the BTO particle size was shown to increase the dielectric constant of the perovskite, which is an intriguing but contested result. We investigated this result by fabricating silicone-matrix nanocomposite specimens containing BTO particles of decreasing diameter. Furthermore, density functional theory modeling was used to understand the interactions at the BTO particle surface. Combining results from experiments and modeling indicated that polymer type, particle surface interactions, and particle surface structure can influence the dielectric properties of polymer-matrix nanocomposites containing BTO.”
Find the technical paper here and Harvey Mudd’s news article here.
Pritchard, A., Fuentes, H., Santosa, J. et al. Understanding surfaces and interfaces in nanocomposites of silicone and barium titanate through experiments and modeling. MRS Communications (2024). https://doi.org/10.1557/s43579-024-00638-0.
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