High electrical reliability glass-polymer laminates

Mengxue Yuan, Ramakrishnan Rajagopalan, Michael Lanagan, Shihai Zhang

Research output: Contribution to journalArticle

Abstract

Low-alkali boroaluminosilicate glasses have attracted increasing attention in high temperature dielectric applications due to their excellent dielectric and mechanical properties, and superior thermal stability. Here, we explore an effective approach to greatly improve the electrical reliability of a low-alkali glass by coating a thin polymer layer on top of the glass. In particular, it is shown that the primary breakdown mechanism of the glass is associated with the intensified electric fields in the depletion layers, and the polymer coating can substantially mitigate the local fields in the depleted regions, thus leading to a markedly improved distribution of electrical failures for the glass-polymer laminate. The laminate can exhibit a large breakdown strength of 10.5 MV/cm and a significantly increased Weibull shape parameter of 49.

Original languageEnglish (US)
Article number8726037
Pages (from-to)885-889
Number of pages5
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume26
Issue number3
DOIs
StatePublished - Jun 2019

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Laminates
Glass
Polymers
Coatings
Dielectric properties
Thermodynamic stability
Electric fields
Mechanical properties
Temperature

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

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abstract = "Low-alkali boroaluminosilicate glasses have attracted increasing attention in high temperature dielectric applications due to their excellent dielectric and mechanical properties, and superior thermal stability. Here, we explore an effective approach to greatly improve the electrical reliability of a low-alkali glass by coating a thin polymer layer on top of the glass. In particular, it is shown that the primary breakdown mechanism of the glass is associated with the intensified electric fields in the depletion layers, and the polymer coating can substantially mitigate the local fields in the depleted regions, thus leading to a markedly improved distribution of electrical failures for the glass-polymer laminate. The laminate can exhibit a large breakdown strength of 10.5 MV/cm and a significantly increased Weibull shape parameter of 49.",
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High electrical reliability glass-polymer laminates. / Yuan, Mengxue; Rajagopalan, Ramakrishnan; Lanagan, Michael; Zhang, Shihai.

In: IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 26, No. 3, 8726037, 06.2019, p. 885-889.

Research output: Contribution to journalArticle

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