通过实验和建模了解硅和钛酸钡纳米复合材料的表面和界面

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY MRS Communications Pub Date : 2024-09-16 DOI:10.1557/s43579-024-00638-0

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

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引用次数: 0

摘要

钛酸钡（BTO）是一种铁电包晶石，因其介电常数高而被用于电子和储能系统。研究表明，减小 BTO 的粒径可增加该包晶石的介电常数，这是一个令人感兴趣但又有争议的结果。我们通过制作含有直径逐渐减小的 BTO 颗粒的硅基质纳米复合材料试样来研究这一结果。此外，我们还利用密度泛函理论建模来了解 BTO 粒子表面的相互作用。结合实验和建模的结果表明，聚合物类型、颗粒表面相互作用和颗粒表面结构会影响含有 BTO 的聚合物-基质纳米复合材料的介电性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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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来源期刊

MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.60

自引率

10.50%

发文量

166

审稿时长

>12 weeks

期刊介绍： MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.