Understanding surfaces and interfaces in nanocomposites of silicone and barium titanate through experiments and modeling

Pritchard, Avery; Fuentes, Heather; Santosa, Jessica; Gonzalez, Madison; Garan, Josiah; Bartling, Vanessa; Nelson, Katrina; Dato, Albert; Monson, Todd; Van Ginhoven, Renee

doi:10.1557/s43579-024-00638-0

Understanding surfaces and interfaces in nanocomposites of silicone and barium titanate through experiments and modeling

Journal Article · Mon Sep 16 00:00:00 EDT 2024 · MRS Communications

DOI:https://doi.org/10.1557/s43579-024-00638-0· OSTI ID:2479651

Pritchard, Avery ^[1]; Fuentes, Heather ^[1]; Santosa, Jessica ^[1]; Gonzalez, Madison ^[1]; Garan, Josiah ^[1]; Bartling, Vanessa ^[1]; Nelson, Katrina ^[1]; ^[1]; Monson, Todd ^[2]; Van Ginhoven, Renee ^[3]

Harvey Mudd College, Claremont, CA (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Air Force Research Lab. (AFRL), Kirtland Air Force Base, NM (United States)

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.

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Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003525

OSTI ID:: 2479651

Alternate ID(s):: OSTI ID: 2587638

Journal Information:: MRS Communications, Journal Name: MRS Communications Journal Issue: 6 Vol. 14; ISSN 2159-6867

Publisher:: Springer Science and Business Media LLCCopyright Statement

Country of Publication:: United States

Language:: English

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Understanding surfaces and interfaces in nanocomposites of silicone and barium titanate through experiments and modeling

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