Effect of Stoichiometry on AC and DC Breakdown of Silicon Nitride/Epoxy Nanocomposites

Fuad N. Alhabill; Alun S. Vaughan; Thomas Andritsch; Nader Anani

doi:10.1109/TDEI.2021.009561

Effect of Stoichiometry on AC and DC Breakdown of Silicon Nitride/Epoxy Nanocomposites

Fuad N. Alhabill, Alun S. Vaughan, Thomas Andritsch, Nader Anani

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

This study investigates the electrical behavior of silicon nitride/epoxy nanocomposites. It is demonstrated that the presence of the nanofiller affects the resin/hardener stoichiometry, which results in the development of different network structures throughout the matrix polymer. However, detailed analysis shows that this stoichiometric effect cannot account, alone, for the observed changes in the electrical behavior of the nanocomposite samples. A comparison between the electrical behavior of filled and the unfilled samples, where appropriate stoichiometric compensation has been applied, indicates that there is an additional effect that is exclusively a function of the nanofiller loading and which is superimposed on any matrix chemistry effects. Potential explanations for this nanoparticle effect are discussed, including nanoparticle agglomeration, water shells around the nanoparticles, the influence of nanoparticles on matrix dynamics, structure or the free volume content of polymer interphase.

Original language	English
Article number	9515800
Pages (from-to)	1231-1237
Number of pages	7
Journal	IEEE Transactions on Dielectrics and Electrical Insulation
Volume	28
Issue number	4
DOIs	https://doi.org/10.1109/TDEI.2021.009561
Publication status	Published - 17 Aug 2021
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/TDEI.2021.009561Licence: Unspecified

Cite this

@article{8564d943b91e4172824ca2eecad63106,

title = "Effect of Stoichiometry on AC and DC Breakdown of Silicon Nitride/Epoxy Nanocomposites",

abstract = "This study investigates the electrical behavior of silicon nitride/epoxy nanocomposites. It is demonstrated that the presence of the nanofiller affects the resin/hardener stoichiometry, which results in the development of different network structures throughout the matrix polymer. However, detailed analysis shows that this stoichiometric effect cannot account, alone, for the observed changes in the electrical behavior of the nanocomposite samples. A comparison between the electrical behavior of filled and the unfilled samples, where appropriate stoichiometric compensation has been applied, indicates that there is an additional effect that is exclusively a function of the nanofiller loading and which is superimposed on any matrix chemistry effects. Potential explanations for this nanoparticle effect are discussed, including nanoparticle agglomeration, water shells around the nanoparticles, the influence of nanoparticles on matrix dynamics, structure or the free volume content of polymer interphase.",

keywords = "AC breakdown, conductivity, DC breakdown, epoxy, nanocomposites, particle interphase, silicon nitride",

author = "Alhabill, {Fuad N.} and Vaughan, {Alun S.} and Thomas Andritsch and Nader Anani",

note = "Publisher Copyright: {\textcopyright} 1994-2012 IEEE.",

year = "2021",

month = aug,

day = "17",

doi = "10.1109/TDEI.2021.009561",

language = "English",

volume = "28",

pages = "1231--1237",

journal = "IEEE Transactions on Dielectrics and Electrical Insulation",

issn = "1070-9878",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

}

TY - JOUR

T1 - Effect of Stoichiometry on AC and DC Breakdown of Silicon Nitride/Epoxy Nanocomposites

AU - Alhabill, Fuad N.

AU - Vaughan, Alun S.

AU - Andritsch, Thomas

AU - Anani, Nader

PY - 2021/8/17

Y1 - 2021/8/17

N2 - This study investigates the electrical behavior of silicon nitride/epoxy nanocomposites. It is demonstrated that the presence of the nanofiller affects the resin/hardener stoichiometry, which results in the development of different network structures throughout the matrix polymer. However, detailed analysis shows that this stoichiometric effect cannot account, alone, for the observed changes in the electrical behavior of the nanocomposite samples. A comparison between the electrical behavior of filled and the unfilled samples, where appropriate stoichiometric compensation has been applied, indicates that there is an additional effect that is exclusively a function of the nanofiller loading and which is superimposed on any matrix chemistry effects. Potential explanations for this nanoparticle effect are discussed, including nanoparticle agglomeration, water shells around the nanoparticles, the influence of nanoparticles on matrix dynamics, structure or the free volume content of polymer interphase.

AB - This study investigates the electrical behavior of silicon nitride/epoxy nanocomposites. It is demonstrated that the presence of the nanofiller affects the resin/hardener stoichiometry, which results in the development of different network structures throughout the matrix polymer. However, detailed analysis shows that this stoichiometric effect cannot account, alone, for the observed changes in the electrical behavior of the nanocomposite samples. A comparison between the electrical behavior of filled and the unfilled samples, where appropriate stoichiometric compensation has been applied, indicates that there is an additional effect that is exclusively a function of the nanofiller loading and which is superimposed on any matrix chemistry effects. Potential explanations for this nanoparticle effect are discussed, including nanoparticle agglomeration, water shells around the nanoparticles, the influence of nanoparticles on matrix dynamics, structure or the free volume content of polymer interphase.

KW - AC breakdown

KW - conductivity

KW - DC breakdown

KW - epoxy

KW - nanocomposites

KW - particle interphase

KW - silicon nitride

UR - http://www.scopus.com/inward/record.url?scp=85113712949&partnerID=8YFLogxK

U2 - 10.1109/TDEI.2021.009561

DO - 10.1109/TDEI.2021.009561

M3 - Article

AN - SCOPUS:85113712949

VL - 28

SP - 1231

EP - 1237

JO - IEEE Transactions on Dielectrics and Electrical Insulation

JF - IEEE Transactions on Dielectrics and Electrical Insulation

SN - 1070-9878

IS - 4

M1 - 9515800

ER -

Effect of Stoichiometry on AC and DC Breakdown of Silicon Nitride/Epoxy Nanocomposites

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this