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1975•Applied Physics LettersRequires access

Distribution of charge in electrets

Richard Collins

Open publisher page 126 citations

Abstract

Measurements are reported of the total charge and its mean position in liquid-charged FEP electrets. A new nondestructive technique has been used. The large difference in decay rates of positive and negative liquid-charged electrets is accompanied by quite different behavior of the deposited charge as it migrates through the electret. The total volume charge density present in untreated FEP has been measured: it typically amounts to 0.1–0.6 C m−3 for 25-μ-thick material.

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What this paper is about

Measurements are reported of the total charge and its mean position in liquid-charged FEP electrets. A new nondestructive technique has been used. The large difference in decay rates of positive and negative liquid-charged electrets is accompanied by quite different behavior of the deposited charge as it migrates through the electret. The total volume charge density present in untreated FEP has been measured: it typically amounts to 0.1–0.6 C m−3 for 25-μ-thick material.

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Available abstract

Measurements are reported of the total charge and its mean position in liquid-charged FEP electrets. A new nondestructive technique has been used. The large difference in decay rates of positive and negative liquid-charged electrets is accompanied by quite different behavior of the deposited charge as it migrates through the electret. The total volume charge density present in untreated FEP has been measured: it typically amounts to 0.1–0.6 C m−3 for 25-μ-thick material.

Key concepts: Electret, Charge density, Charge (physics), Materials science, Volume (thermodynamics), Analytical Chemistry (journal), Molecular physics, Composite material

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